Home / 8,387.20-12,574.80-4,224.24

Finding the Fourth Proportional to 8,387.20, 12,574.80 and 4,224.24

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Solution

The fourth proportional to 8,387.20, 12,574.80 and 4,224.24 is: 6,333.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,387.20 : 12,574.80 = 4,224.24 : x
  2. Step 2: Convert to fraction form
    8,387.20/12,574.80 = 4,224.24/x
  3. Step 3: Cross multiply
    8,387.20x = 12,574.80 × 4,224.24
  4. Step 4: Simplify right side
    8,387.20x = 53,118,973.15
  5. Step 5: Solve for x
    x = 53,118,973.15/8,387.20
  6. Step 6: Final answer
    x = 6,333.34

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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.