Home / 12,549.20-17,313.28-7,513.52

Finding the Fourth Proportional to 12,549.20, 17,313.28 and 7,513.52

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Solution

The fourth proportional to 12,549.20, 17,313.28 and 7,513.52 is: 10,365.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,549.20 : 17,313.28 = 7,513.52 : x
  2. Step 2: Convert to fraction form
    12,549.20/17,313.28 = 7,513.52/x
  3. Step 3: Cross multiply
    12,549.20x = 17,313.28 × 7,513.52
  4. Step 4: Simplify right side
    12,549.20x = 130,083,675.55
  5. Step 5: Solve for x
    x = 130,083,675.55/12,549.20
  6. Step 6: Final answer
    x = 10,365.89

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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.