Home / 13,130.17-19,687.33-5,233.90

Finding the Fourth Proportional to 13,130.17, 19,687.33 and 5,233.90

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Solution

The fourth proportional to 13,130.17, 19,687.33 and 5,233.90 is: 7,847.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,130.17 : 19,687.33 = 5,233.90 : x
  2. Step 2: Convert to fraction form
    13,130.17/19,687.33 = 5,233.90/x
  3. Step 3: Cross multiply
    13,130.17x = 19,687.33 × 5,233.90
  4. Step 4: Simplify right side
    13,130.17x = 103,041,516.49
  5. Step 5: Solve for x
    x = 103,041,516.49/13,130.17
  6. Step 6: Final answer
    x = 7,847.69

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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.