Home / 15,472.75-21,349.92-8,756.23

Finding the Fourth Proportional to 15,472.75, 21,349.92 and 8,756.23

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Solution

The fourth proportional to 15,472.75, 21,349.92 and 8,756.23 is: 12,082.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,472.75 : 21,349.92 = 8,756.23 : x
  2. Step 2: Convert to fraction form
    15,472.75/21,349.92 = 8,756.23/x
  3. Step 3: Cross multiply
    15,472.75x = 21,349.92 × 8,756.23
  4. Step 4: Simplify right side
    15,472.75x = 186,944,810.00
  5. Step 5: Solve for x
    x = 186,944,810.00/15,472.75
  6. Step 6: Final answer
    x = 12,082.20

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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.