Home / 10,385.10-15,582.51-4,540.95

Finding the Fourth Proportional to 10,385.10, 15,582.51 and 4,540.95

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Solution

The fourth proportional to 10,385.10, 15,582.51 and 4,540.95 is: 6,813.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,385.10 : 15,582.51 = 4,540.95 : x
  2. Step 2: Convert to fraction form
    10,385.10/15,582.51 = 4,540.95/x
  3. Step 3: Cross multiply
    10,385.10x = 15,582.51 × 4,540.95
  4. Step 4: Simplify right side
    10,385.10x = 70,759,398.78
  5. Step 5: Solve for x
    x = 70,759,398.78/10,385.10
  6. Step 6: Final answer
    x = 6,813.55

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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.