Home / 12,561.48-17,337.90-7,528.68

Finding the Fourth Proportional to 12,561.48, 17,337.90 and 7,528.68

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Solution

The fourth proportional to 12,561.48, 17,337.90 and 7,528.68 is: 10,391.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,561.48 : 17,337.90 = 7,528.68 : x
  2. Step 2: Convert to fraction form
    12,561.48/17,337.90 = 7,528.68/x
  3. Step 3: Cross multiply
    12,561.48x = 17,337.90 × 7,528.68
  4. Step 4: Simplify right side
    12,561.48x = 130,531,500.97
  5. Step 5: Solve for x
    x = 130,531,500.97/12,561.48
  6. Step 6: Final answer
    x = 10,391.41

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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.