Home / 15,669.92-21,624.30-8,499.70

Finding the Fourth Proportional to 15,669.92, 21,624.30 and 8,499.70

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Solution

The fourth proportional to 15,669.92, 21,624.30 and 8,499.70 is: 11,729.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,669.92 : 21,624.30 = 8,499.70 : x
  2. Step 2: Convert to fraction form
    15,669.92/21,624.30 = 8,499.70/x
  3. Step 3: Cross multiply
    15,669.92x = 21,624.30 × 8,499.70
  4. Step 4: Simplify right side
    15,669.92x = 183,800,068.58
  5. Step 5: Solve for x
    x = 183,800,068.58/15,669.92
  6. Step 6: Final answer
    x = 11,729.48

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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.