Home / 13,359.53-20,017.43-7,112.91

Finding the Fourth Proportional to 13,359.53, 20,017.43 and 7,112.91

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Solution

The fourth proportional to 13,359.53, 20,017.43 and 7,112.91 is: 10,657.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,359.53 : 20,017.43 = 7,112.91 : x
  2. Step 2: Convert to fraction form
    13,359.53/20,017.43 = 7,112.91/x
  3. Step 3: Cross multiply
    13,359.53x = 20,017.43 × 7,112.91
  4. Step 4: Simplify right side
    13,359.53x = 142,382,244.20
  5. Step 5: Solve for x
    x = 142,382,244.20/13,359.53
  6. Step 6: Final answer
    x = 10,657.73

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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.