Home / 18,612.10-25,684.40-10,228.42

Finding the Fourth Proportional to 18,612.10, 25,684.40 and 10,228.42

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Solution

The fourth proportional to 18,612.10, 25,684.40 and 10,228.42 is: 14,115.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,612.10 : 25,684.40 = 10,228.42 : x
  2. Step 2: Convert to fraction form
    18,612.10/25,684.40 = 10,228.42/x
  3. Step 3: Cross multiply
    18,612.10x = 25,684.40 × 10,228.42
  4. Step 4: Simplify right side
    18,612.10x = 262,710,830.65
  5. Step 5: Solve for x
    x = 262,710,830.65/18,612.10
  6. Step 6: Final answer
    x = 14,115.06

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.