Home / 15,539.04-21,443.54-8,824.55

Finding the Fourth Proportional to 15,539.04, 21,443.54 and 8,824.55

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Solution

The fourth proportional to 15,539.04, 21,443.54 and 8,824.55 is: 12,177.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,539.04 : 21,443.54 = 8,824.55 : x
  2. Step 2: Convert to fraction form
    15,539.04/21,443.54 = 8,824.55/x
  3. Step 3: Cross multiply
    15,539.04x = 21,443.54 × 8,824.55
  4. Step 4: Simplify right side
    15,539.04x = 189,229,439.57
  5. Step 5: Solve for x
    x = 189,229,439.57/15,539.04
  6. Step 6: Final answer
    x = 12,177.68

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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.