Home / 13,173.59-19,760.38-5,382.40

Finding the Fourth Proportional to 13,173.59, 19,760.38 and 5,382.40

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Solution

The fourth proportional to 13,173.59, 19,760.38 and 5,382.40 is: 8,073.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,173.59 : 19,760.38 = 5,382.40 : x
  2. Step 2: Convert to fraction form
    13,173.59/19,760.38 = 5,382.40/x
  3. Step 3: Cross multiply
    13,173.59x = 19,760.38 × 5,382.40
  4. Step 4: Simplify right side
    13,173.59x = 106,358,206.46
  5. Step 5: Solve for x
    x = 106,358,206.46/13,173.59
  6. Step 6: Final answer
    x = 8,073.60

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1.5x scale

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.