Home / 10,308.70-15,465.45-4,385.91

Finding the Fourth Proportional to 10,308.70, 15,465.45 and 4,385.91

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Solution

The fourth proportional to 10,308.70, 15,465.45 and 4,385.91 is: 6,579.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,308.70 : 15,465.45 = 4,385.91 : x
  2. Step 2: Convert to fraction form
    10,308.70/15,465.45 = 4,385.91/x
  3. Step 3: Cross multiply
    10,308.70x = 15,465.45 × 4,385.91
  4. Step 4: Simplify right side
    10,308.70x = 67,830,049.88
  5. Step 5: Solve for x
    x = 67,830,049.88/10,308.70
  6. Step 6: Final answer
    x = 6,579.88

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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.