Home / 10,902.30-16,353.45-9,881.70

Finding the Fourth Proportional to 10,902.30, 16,353.45 and 9,881.70

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Solution

The fourth proportional to 10,902.30, 16,353.45 and 9,881.70 is: 14,822.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,902.30 : 16,353.45 = 9,881.70 : x
  2. Step 2: Convert to fraction form
    10,902.30/16,353.45 = 9,881.70/x
  3. Step 3: Cross multiply
    10,902.30x = 16,353.45 × 9,881.70
  4. Step 4: Simplify right side
    10,902.30x = 161,599,886.87
  5. Step 5: Solve for x
    x = 161,599,886.87/10,902.30
  6. Step 6: Final answer
    x = 14,822.55

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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.