Home / 12,681.19-17,475.37-9,137.71

Finding the Fourth Proportional to 12,681.19, 17,475.37 and 9,137.71

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Solution

The fourth proportional to 12,681.19, 17,475.37 and 9,137.71 is: 12,592.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,681.19 : 17,475.37 = 9,137.71 : x
  2. Step 2: Convert to fraction form
    12,681.19/17,475.37 = 9,137.71/x
  3. Step 3: Cross multiply
    12,681.19x = 17,475.37 × 9,137.71
  4. Step 4: Simplify right side
    12,681.19x = 159,684,863.20
  5. Step 5: Solve for x
    x = 159,684,863.20/12,681.19
  6. Step 6: Final answer
    x = 12,592.26

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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.