Home / 13,280.64-19,933.27-6,711.45

Finding the Fourth Proportional to 13,280.64, 19,933.27 and 6,711.45

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Solution

The fourth proportional to 13,280.64, 19,933.27 and 6,711.45 is: 10,073.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,280.64 : 19,933.27 = 6,711.45 : x
  2. Step 2: Convert to fraction form
    13,280.64/19,933.27 = 6,711.45/x
  3. Step 3: Cross multiply
    13,280.64x = 19,933.27 × 6,711.45
  4. Step 4: Simplify right side
    13,280.64x = 133,781,128.16
  5. Step 5: Solve for x
    x = 133,781,128.16/13,280.64
  6. Step 6: Final answer
    x = 10,073.39

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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.