Home / 12,452.10-18,678.15-11,501.70

Finding the Fourth Proportional to 12,452.10, 18,678.15 and 11,501.70

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Solution

The fourth proportional to 12,452.10, 18,678.15 and 11,501.70 is: 17,252.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,452.10 : 18,678.15 = 11,501.70 : x
  2. Step 2: Convert to fraction form
    12,452.10/18,678.15 = 11,501.70/x
  3. Step 3: Cross multiply
    12,452.10x = 18,678.15 × 11,501.70
  4. Step 4: Simplify right side
    12,452.10x = 214,830,477.86
  5. Step 5: Solve for x
    x = 214,830,477.86/12,452.10
  6. Step 6: Final answer
    x = 17,252.55

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.