Home / 8,370.32-12,555.60-3,988.24

Finding the Fourth Proportional to 8,370.32, 12,555.60 and 3,988.24

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Solution

The fourth proportional to 8,370.32, 12,555.60 and 3,988.24 is: 5,982.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,370.32 : 12,555.60 = 3,988.24 : x
  2. Step 2: Convert to fraction form
    8,370.32/12,555.60 = 3,988.24/x
  3. Step 3: Cross multiply
    8,370.32x = 12,555.60 × 3,988.24
  4. Step 4: Simplify right side
    8,370.32x = 50,074,746.14
  5. Step 5: Solve for x
    x = 50,074,746.14/8,370.32
  6. Step 6: Final answer
    x = 5,982.42

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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.