Home / 10,108.29-13,948.11-5,631.51

Finding the Fourth Proportional to 10,108.29, 13,948.11 and 5,631.51

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Solution

The fourth proportional to 10,108.29, 13,948.11 and 5,631.51 is: 7,770.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,108.29 : 13,948.11 = 5,631.51 : x
  2. Step 2: Convert to fraction form
    10,108.29/13,948.11 = 5,631.51/x
  3. Step 3: Cross multiply
    10,108.29x = 13,948.11 × 5,631.51
  4. Step 4: Simplify right side
    10,108.29x = 78,548,920.95
  5. Step 5: Solve for x
    x = 78,548,920.95/10,108.29
  6. Step 6: Final answer
    x = 7,770.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.