Home / 10,085.13-15,117.98-6,790.87

Finding the Fourth Proportional to 10,085.13, 15,117.98 and 6,790.87

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Solution

The fourth proportional to 10,085.13, 15,117.98 and 6,790.87 is: 10,179.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,085.13 : 15,117.98 = 6,790.87 : x
  2. Step 2: Convert to fraction form
    10,085.13/15,117.98 = 6,790.87/x
  3. Step 3: Cross multiply
    10,085.13x = 15,117.98 × 6,790.87
  4. Step 4: Simplify right side
    10,085.13x = 102,664,202.89
  5. Step 5: Solve for x
    x = 102,664,202.89/10,085.13
  6. Step 6: Final answer
    x = 10,179.76

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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.