Home / 10,207.27-15,312.30-3,187.90

Finding the Fourth Proportional to 10,207.27, 15,312.30 and 3,187.90

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Solution

The fourth proportional to 10,207.27, 15,312.30 and 3,187.90 is: 4,782.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,207.27 : 15,312.30 = 3,187.90 : x
  2. Step 2: Convert to fraction form
    10,207.27/15,312.30 = 3,187.90/x
  3. Step 3: Cross multiply
    10,207.27x = 15,312.30 × 3,187.90
  4. Step 4: Simplify right side
    10,207.27x = 48,814,081.17
  5. Step 5: Solve for x
    x = 48,814,081.17/10,207.27
  6. Step 6: Final answer
    x = 4,782.29

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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.