Home / 15,624.53-21,561.70-8,454.29

Finding the Fourth Proportional to 15,624.53, 21,561.70 and 8,454.29

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Solution

The fourth proportional to 15,624.53, 21,561.70 and 8,454.29 is: 11,666.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,624.53 : 21,561.70 = 8,454.29 : x
  2. Step 2: Convert to fraction form
    15,624.53/21,561.70 = 8,454.29/x
  3. Step 3: Cross multiply
    15,624.53x = 21,561.70 × 8,454.29
  4. Step 4: Simplify right side
    15,624.53x = 182,288,872.89
  5. Step 5: Solve for x
    x = 182,288,872.89/15,624.53
  6. Step 6: Final answer
    x = 11,666.84

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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.