Home / 10,277.81-15,409.52-5,267.87

Finding the Fourth Proportional to 10,277.81, 15,409.52 and 5,267.87

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Solution

The fourth proportional to 10,277.81, 15,409.52 and 5,267.87 is: 7,898.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,277.81 : 15,409.52 = 5,267.87 : x
  2. Step 2: Convert to fraction form
    10,277.81/15,409.52 = 5,267.87/x
  3. Step 3: Cross multiply
    10,277.81x = 15,409.52 × 5,267.87
  4. Step 4: Simplify right side
    10,277.81x = 81,175,348.12
  5. Step 5: Solve for x
    x = 81,175,348.12/10,277.81
  6. Step 6: Final answer
    x = 7,898.12

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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.