Home / 13,494.80-20,231.40-5,697.20

Finding the Fourth Proportional to 13,494.80, 20,231.40 and 5,697.20

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Solution

The fourth proportional to 13,494.80, 20,231.40 and 5,697.20 is: 8,541.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,494.80 : 20,231.40 = 5,697.20 : x
  2. Step 2: Convert to fraction form
    13,494.80/20,231.40 = 5,697.20/x
  3. Step 3: Cross multiply
    13,494.80x = 20,231.40 × 5,697.20
  4. Step 4: Simplify right side
    13,494.80x = 115,262,332.08
  5. Step 5: Solve for x
    x = 115,262,332.08/13,494.80
  6. Step 6: Final answer
    x = 8,541.24

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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.