Home / 15,594.32-21,520.23-8,520.90

Finding the Fourth Proportional to 15,594.32, 21,520.23 and 8,520.90

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Solution

The fourth proportional to 15,594.32, 21,520.23 and 8,520.90 is: 11,758.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,594.32 : 21,520.23 = 8,520.90 : x
  2. Step 2: Convert to fraction form
    15,594.32/21,520.23 = 8,520.90/x
  3. Step 3: Cross multiply
    15,594.32x = 21,520.23 × 8,520.90
  4. Step 4: Simplify right side
    15,594.32x = 183,371,663.08
  5. Step 5: Solve for x
    x = 183,371,663.08/15,594.32
  6. Step 6: Final answer
    x = 11,758.87

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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.