Home / 10,639.17-15,935.00-7,710.75

Finding the Fourth Proportional to 10,639.17, 15,935.00 and 7,710.75

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Solution

The fourth proportional to 10,639.17, 15,935.00 and 7,710.75 is: 11,548.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,639.17 : 15,935.00 = 7,710.75 : x
  2. Step 2: Convert to fraction form
    10,639.17/15,935.00 = 7,710.75/x
  3. Step 3: Cross multiply
    10,639.17x = 15,935.00 × 7,710.75
  4. Step 4: Simplify right side
    10,639.17x = 122,870,762.70
  5. Step 5: Solve for x
    x = 122,870,762.70/10,639.17
  6. Step 6: Final answer
    x = 11,548.90

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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.