Home / 15,328.46-21,154.50-8,614.40

Finding the Fourth Proportional to 15,328.46, 21,154.50 and 8,614.40

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Solution

The fourth proportional to 15,328.46, 21,154.50 and 8,614.40 is: 11,888.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,328.46 : 21,154.50 = 8,614.40 : x
  2. Step 2: Convert to fraction form
    15,328.46/21,154.50 = 8,614.40/x
  3. Step 3: Cross multiply
    15,328.46x = 21,154.50 × 8,614.40
  4. Step 4: Simplify right side
    15,328.46x = 182,233,324.80
  5. Step 5: Solve for x
    x = 182,233,324.80/15,328.46
  6. Step 6: Final answer
    x = 11,888.56

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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.