Home / 15,006.74-20,710.91-8,633.61

Finding the Fourth Proportional to 15,006.74, 20,710.91 and 8,633.61

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Solution

The fourth proportional to 15,006.74, 20,710.91 and 8,633.61 is: 11,915.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,006.74 : 20,710.91 = 8,633.61 : x
  2. Step 2: Convert to fraction form
    15,006.74/20,710.91 = 8,633.61/x
  3. Step 3: Cross multiply
    15,006.74x = 20,710.91 × 8,633.61
  4. Step 4: Simplify right side
    15,006.74x = 178,809,941.27
  5. Step 5: Solve for x
    x = 178,809,941.27/15,006.74
  6. Step 6: Final answer
    x = 11,915.31

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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.