Home / 15,235.34-21,024.15-8,520.62

Finding the Fourth Proportional to 15,235.34, 21,024.15 and 8,520.62

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Solution

The fourth proportional to 15,235.34, 21,024.15 and 8,520.62 is: 11,758.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,235.34 : 21,024.15 = 8,520.62 : x
  2. Step 2: Convert to fraction form
    15,235.34/21,024.15 = 8,520.62/x
  3. Step 3: Cross multiply
    15,235.34x = 21,024.15 × 8,520.62
  4. Step 4: Simplify right side
    15,235.34x = 179,138,792.97
  5. Step 5: Solve for x
    x = 179,138,792.97/15,235.34
  6. Step 6: Final answer
    x = 11,758.11

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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.