Home / 13,247.15-18,282.69-7,658.15

Finding the Fourth Proportional to 13,247.15, 18,282.69 and 7,658.15

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Solution

The fourth proportional to 13,247.15, 18,282.69 and 7,658.15 is: 10,569.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,247.15 : 18,282.69 = 7,658.15 : x
  2. Step 2: Convert to fraction form
    13,247.15/18,282.69 = 7,658.15/x
  3. Step 3: Cross multiply
    13,247.15x = 18,282.69 × 7,658.15
  4. Step 4: Simplify right side
    13,247.15x = 140,011,491.01
  5. Step 5: Solve for x
    x = 140,011,491.01/13,247.15
  6. Step 6: Final answer
    x = 10,569.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.