Home / 8,319.90-12,476.41-3,386.19

Finding the Fourth Proportional to 8,319.90, 12,476.41 and 3,386.19

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Solution

The fourth proportional to 8,319.90, 12,476.41 and 3,386.19 is: 5,077.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,319.90 : 12,476.41 = 3,386.19 : x
  2. Step 2: Convert to fraction form
    8,319.90/12,476.41 = 3,386.19/x
  3. Step 3: Cross multiply
    8,319.90x = 12,476.41 × 3,386.19
  4. Step 4: Simplify right side
    8,319.90x = 42,247,494.78
  5. Step 5: Solve for x
    x = 42,247,494.78/8,319.90
  6. Step 6: Final answer
    x = 5,077.88

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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.