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Finding the Fourth Proportional to 12,563.55, 17,332.92 and 7,457.94

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Solution

The fourth proportional to 12,563.55, 17,332.92 and 7,457.94 is: 10,289.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,563.55 : 17,332.92 = 7,457.94 : x
  2. Step 2: Convert to fraction form
    12,563.55/17,332.92 = 7,457.94/x
  3. Step 3: Cross multiply
    12,563.55x = 17,332.92 × 7,457.94
  4. Step 4: Simplify right side
    12,563.55x = 129,267,877.38
  5. Step 5: Solve for x
    x = 129,267,877.38/12,563.55
  6. Step 6: Final answer
    x = 10,289.12

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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.