Home / 8,397.36-12,597.12-7,814.16

Finding the Fourth Proportional to 8,397.36, 12,597.12 and 7,814.16

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Solution

The fourth proportional to 8,397.36, 12,597.12 and 7,814.16 is: 11,722.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,397.36 : 12,597.12 = 7,814.16 : x
  2. Step 2: Convert to fraction form
    8,397.36/12,597.12 = 7,814.16/x
  3. Step 3: Cross multiply
    8,397.36x = 12,597.12 × 7,814.16
  4. Step 4: Simplify right side
    8,397.36x = 98,435,911.22
  5. Step 5: Solve for x
    x = 98,435,911.22/8,397.36
  6. Step 6: Final answer
    x = 11,722.24

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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.