Home / 15,560.80-23,282.86-8,640.16

Finding the Fourth Proportional to 15,560.80, 23,282.86 and 8,640.16

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Solution

The fourth proportional to 15,560.80, 23,282.86 and 8,640.16 is: 12,927.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,560.80 : 23,282.86 = 8,640.16 : x
  2. Step 2: Convert to fraction form
    15,560.80/23,282.86 = 8,640.16/x
  3. Step 3: Cross multiply
    15,560.80x = 23,282.86 × 8,640.16
  4. Step 4: Simplify right side
    15,560.80x = 201,167,635.66
  5. Step 5: Solve for x
    x = 201,167,635.66/15,560.80
  6. Step 6: Final answer
    x = 12,927.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.