Home / 10,135.91-15,206.12-3,116.63

Finding the Fourth Proportional to 10,135.91, 15,206.12 and 3,116.63

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Solution

The fourth proportional to 10,135.91, 15,206.12 and 3,116.63 is: 4,675.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,135.91 : 15,206.12 = 3,116.63 : x
  2. Step 2: Convert to fraction form
    10,135.91/15,206.12 = 3,116.63/x
  3. Step 3: Cross multiply
    10,135.91x = 15,206.12 × 3,116.63
  4. Step 4: Simplify right side
    10,135.91x = 47,391,758.16
  5. Step 5: Solve for x
    x = 47,391,758.16/10,135.91
  6. Step 6: Final answer
    x = 4,675.63

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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.