Home / 15,444.62-21,313.91-8,729.85

Finding the Fourth Proportional to 15,444.62, 21,313.91 and 8,729.85

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Solution

The fourth proportional to 15,444.62, 21,313.91 and 8,729.85 is: 12,047.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,444.62 : 21,313.91 = 8,729.85 : x
  2. Step 2: Convert to fraction form
    15,444.62/21,313.91 = 8,729.85/x
  3. Step 3: Cross multiply
    15,444.62x = 21,313.91 × 8,729.85
  4. Step 4: Simplify right side
    15,444.62x = 186,067,254.47
  5. Step 5: Solve for x
    x = 186,067,254.47/15,444.62
  6. Step 6: Final answer
    x = 12,047.38

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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.