Home / 10,902.30-16,353.45-7,208.70

Finding the Fourth Proportional to 10,902.30, 16,353.45 and 7,208.70

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Solution

The fourth proportional to 10,902.30, 16,353.45 and 7,208.70 is: 10,813.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,902.30 : 16,353.45 = 7,208.70 : x
  2. Step 2: Convert to fraction form
    10,902.30/16,353.45 = 7,208.70/x
  3. Step 3: Cross multiply
    10,902.30x = 16,353.45 × 7,208.70
  4. Step 4: Simplify right side
    10,902.30x = 117,887,115.02
  5. Step 5: Solve for x
    x = 117,887,115.02/10,902.30
  6. Step 6: Final answer
    x = 10,813.05

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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.