Home / 16,770.76-23,143.64-9,318.76

Finding the Fourth Proportional to 16,770.76, 23,143.64 and 9,318.76

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Solution

The fourth proportional to 16,770.76, 23,143.64 and 9,318.76 is: 12,859.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,770.76 : 23,143.64 = 9,318.76 : x
  2. Step 2: Convert to fraction form
    16,770.76/23,143.64 = 9,318.76/x
  3. Step 3: Cross multiply
    16,770.76x = 23,143.64 × 9,318.76
  4. Step 4: Simplify right side
    16,770.76x = 215,670,026.69
  5. Step 5: Solve for x
    x = 215,670,026.69/16,770.76
  6. Step 6: Final answer
    x = 12,859.88

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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.