Home / 12,731.24-17,569.24-7,353.28

Finding the Fourth Proportional to 12,731.24, 17,569.24 and 7,353.28

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Solution

The fourth proportional to 12,731.24, 17,569.24 and 7,353.28 is: 10,147.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,731.24 : 17,569.24 = 7,353.28 : x
  2. Step 2: Convert to fraction form
    12,731.24/17,569.24 = 7,353.28/x
  3. Step 3: Cross multiply
    12,731.24x = 17,569.24 × 7,353.28
  4. Step 4: Simplify right side
    12,731.24x = 129,191,541.11
  5. Step 5: Solve for x
    x = 129,191,541.11/12,731.24
  6. Step 6: Final answer
    x = 10,147.60

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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.