Home / 15,472.02-21,351.38-8,757.53

Finding the Fourth Proportional to 15,472.02, 21,351.38 and 8,757.53

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Solution

The fourth proportional to 15,472.02, 21,351.38 and 8,757.53 is: 12,085.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,472.02 : 21,351.38 = 8,757.53 : x
  2. Step 2: Convert to fraction form
    15,472.02/21,351.38 = 8,757.53/x
  3. Step 3: Cross multiply
    15,472.02x = 21,351.38 × 8,757.53
  4. Step 4: Simplify right side
    15,472.02x = 186,985,350.89
  5. Step 5: Solve for x
    x = 186,985,350.89/15,472.02
  6. Step 6: Final answer
    x = 12,085.39

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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.