Home / 15,983.40-22,057.10-8,909.66

Finding the Fourth Proportional to 15,983.40, 22,057.10 and 8,909.66

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Solution

The fourth proportional to 15,983.40, 22,057.10 and 8,909.66 is: 12,295.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,983.40 : 22,057.10 = 8,909.66 : x
  2. Step 2: Convert to fraction form
    15,983.40/22,057.10 = 8,909.66/x
  3. Step 3: Cross multiply
    15,983.40x = 22,057.10 × 8,909.66
  4. Step 4: Simplify right side
    15,983.40x = 196,521,261.59
  5. Step 5: Solve for x
    x = 196,521,261.59/15,983.40
  6. Step 6: Final answer
    x = 12,295.34

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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.