Home / 16,889.85-23,309.40-9,337.65

Finding the Fourth Proportional to 16,889.85, 23,309.40 and 9,337.65

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Solution

The fourth proportional to 16,889.85, 23,309.40 and 9,337.65 is: 12,886.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,889.85 : 23,309.40 = 9,337.65 : x
  2. Step 2: Convert to fraction form
    16,889.85/23,309.40 = 9,337.65/x
  3. Step 3: Cross multiply
    16,889.85x = 23,309.40 × 9,337.65
  4. Step 4: Simplify right side
    16,889.85x = 217,655,018.91
  5. Step 5: Solve for x
    x = 217,655,018.91/16,889.85
  6. Step 6: Final answer
    x = 12,886.73

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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.