Home / 15,640.40-23,463.16-5,107.36

Finding the Fourth Proportional to 15,640.40, 23,463.16 and 5,107.36

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Solution

The fourth proportional to 15,640.40, 23,463.16 and 5,107.36 is: 7,661.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,640.40 : 23,463.16 = 5,107.36 : x
  2. Step 2: Convert to fraction form
    15,640.40/23,463.16 = 5,107.36/x
  3. Step 3: Cross multiply
    15,640.40x = 23,463.16 × 5,107.36
  4. Step 4: Simplify right side
    15,640.40x = 119,834,804.86
  5. Step 5: Solve for x
    x = 119,834,804.86/15,640.40
  6. Step 6: Final answer
    x = 7,661.88

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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.