Home / 8,574.08-12,853.20-3,378.80

Finding the Fourth Proportional to 8,574.08, 12,853.20 and 3,378.80

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Solution

The fourth proportional to 8,574.08, 12,853.20 and 3,378.80 is: 5,065.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,574.08 : 12,853.20 = 3,378.80 : x
  2. Step 2: Convert to fraction form
    8,574.08/12,853.20 = 3,378.80/x
  3. Step 3: Cross multiply
    8,574.08x = 12,853.20 × 3,378.80
  4. Step 4: Simplify right side
    8,574.08x = 43,428,392.16
  5. Step 5: Solve for x
    x = 43,428,392.16/8,574.08
  6. Step 6: Final answer
    x = 5,065.08

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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.