Home / 16,897.40-25,313.28-8,138.46

Finding the Fourth Proportional to 16,897.40, 25,313.28 and 8,138.46

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Solution

The fourth proportional to 16,897.40, 25,313.28 and 8,138.46 is: 12,191.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,897.40 : 25,313.28 = 8,138.46 : x
  2. Step 2: Convert to fraction form
    16,897.40/25,313.28 = 8,138.46/x
  3. Step 3: Cross multiply
    16,897.40x = 25,313.28 × 8,138.46
  4. Step 4: Simplify right side
    16,897.40x = 206,011,116.75
  5. Step 5: Solve for x
    x = 206,011,116.75/16,897.40
  6. Step 6: Final answer
    x = 12,191.89

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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.