Home / 17,001.72-25,518.09-8,687.49

Finding the Fourth Proportional to 17,001.72, 25,518.09 and 8,687.49

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Solution

The fourth proportional to 17,001.72, 25,518.09 and 8,687.49 is: 13,039.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,001.72 : 25,518.09 = 8,687.49 : x
  2. Step 2: Convert to fraction form
    17,001.72/25,518.09 = 8,687.49/x
  3. Step 3: Cross multiply
    17,001.72x = 25,518.09 × 8,687.49
  4. Step 4: Simplify right side
    17,001.72x = 221,688,151.69
  5. Step 5: Solve for x
    x = 221,688,151.69/17,001.72
  6. Step 6: Final answer
    x = 13,039.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.