Home / 16,947.38-23,385.16-9,777.56

Finding the Fourth Proportional to 16,947.38, 23,385.16 and 9,777.56

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Solution

The fourth proportional to 16,947.38, 23,385.16 and 9,777.56 is: 13,491.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,947.38 : 23,385.16 = 9,777.56 : x
  2. Step 2: Convert to fraction form
    16,947.38/23,385.16 = 9,777.56/x
  3. Step 3: Cross multiply
    16,947.38x = 23,385.16 × 9,777.56
  4. Step 4: Simplify right side
    16,947.38x = 228,649,805.01
  5. Step 5: Solve for x
    x = 228,649,805.01/16,947.38
  6. Step 6: Final answer
    x = 13,491.75

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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.