Home / 15,581.97-21,505.01-8,869.23

Finding the Fourth Proportional to 15,581.97, 21,505.01 and 8,869.23

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Solution

The fourth proportional to 15,581.97, 21,505.01 and 8,869.23 is: 12,240.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,581.97 : 21,505.01 = 8,869.23 : x
  2. Step 2: Convert to fraction form
    15,581.97/21,505.01 = 8,869.23/x
  3. Step 3: Cross multiply
    15,581.97x = 21,505.01 × 8,869.23
  4. Step 4: Simplify right side
    15,581.97x = 190,732,835.50
  5. Step 5: Solve for x
    x = 190,732,835.50/15,581.97
  6. Step 6: Final answer
    x = 12,240.61

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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.