Home / 15,593.60-21,519.48-8,520.32

Finding the Fourth Proportional to 15,593.60, 21,519.48 and 8,520.32

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Solution

The fourth proportional to 15,593.60, 21,519.48 and 8,520.32 is: 11,758.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,593.60 : 21,519.48 = 8,520.32 : x
  2. Step 2: Convert to fraction form
    15,593.60/21,519.48 = 8,520.32/x
  3. Step 3: Cross multiply
    15,593.60x = 21,519.48 × 8,520.32
  4. Step 4: Simplify right side
    15,593.60x = 183,352,855.83
  5. Step 5: Solve for x
    x = 183,352,855.83/15,593.60
  6. Step 6: Final answer
    x = 11,758.21

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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.