Home / 15,247.20-22,870.80-5,386.80

Finding the Fourth Proportional to 15,247.20, 22,870.80 and 5,386.80

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Solution

The fourth proportional to 15,247.20, 22,870.80 and 5,386.80 is: 8,080.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,247.20 : 22,870.80 = 5,386.80 : x
  2. Step 2: Convert to fraction form
    15,247.20/22,870.80 = 5,386.80/x
  3. Step 3: Cross multiply
    15,247.20x = 22,870.80 × 5,386.80
  4. Step 4: Simplify right side
    15,247.20x = 123,200,425.44
  5. Step 5: Solve for x
    x = 123,200,425.44/15,247.20
  6. Step 6: Final answer
    x = 8,080.20

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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.