Home / 8,379.28-12,570.64-2,456.35

Finding the Fourth Proportional to 8,379.28, 12,570.64 and 2,456.35

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Solution

The fourth proportional to 8,379.28, 12,570.64 and 2,456.35 is: 3,685.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,379.28 : 12,570.64 = 2,456.35 : x
  2. Step 2: Convert to fraction form
    8,379.28/12,570.64 = 2,456.35/x
  3. Step 3: Cross multiply
    8,379.28x = 12,570.64 × 2,456.35
  4. Step 4: Simplify right side
    8,379.28x = 30,877,924.71
  5. Step 5: Solve for x
    x = 30,877,924.71/8,379.28
  6. Step 6: Final answer
    x = 3,685.04

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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.