Home / 10,016.91-15,038.10-8,171.64

Finding the Fourth Proportional to 10,016.91, 15,038.10 and 8,171.64

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Solution

The fourth proportional to 10,016.91, 15,038.10 and 8,171.64 is: 12,267.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,016.91 : 15,038.10 = 8,171.64 : x
  2. Step 2: Convert to fraction form
    10,016.91/15,038.10 = 8,171.64/x
  3. Step 3: Cross multiply
    10,016.91x = 15,038.10 × 8,171.64
  4. Step 4: Simplify right side
    10,016.91x = 122,885,939.48
  5. Step 5: Solve for x
    x = 122,885,939.48/10,016.91
  6. Step 6: Final answer
    x = 12,267.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.