Home / 10,354.30-15,530.05-4,118.90

Finding the Fourth Proportional to 10,354.30, 15,530.05 and 4,118.90

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Solution

The fourth proportional to 10,354.30, 15,530.05 and 4,118.90 is: 6,177.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,354.30 : 15,530.05 = 4,118.90 : x
  2. Step 2: Convert to fraction form
    10,354.30/15,530.05 = 4,118.90/x
  3. Step 3: Cross multiply
    10,354.30x = 15,530.05 × 4,118.90
  4. Step 4: Simplify right side
    10,354.30x = 63,966,722.95
  5. Step 5: Solve for x
    x = 63,966,722.95/10,354.30
  6. Step 6: Final answer
    x = 6,177.79

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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.