Home / 8,987.38-13,471.95-3,439.30

Finding the Fourth Proportional to 8,987.38, 13,471.95 and 3,439.30

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Solution

The fourth proportional to 8,987.38, 13,471.95 and 3,439.30 is: 5,155.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,987.38 : 13,471.95 = 3,439.30 : x
  2. Step 2: Convert to fraction form
    8,987.38/13,471.95 = 3,439.30/x
  3. Step 3: Cross multiply
    8,987.38x = 13,471.95 × 3,439.30
  4. Step 4: Simplify right side
    8,987.38x = 46,334,077.64
  5. Step 5: Solve for x
    x = 46,334,077.64/8,987.38
  6. Step 6: Final answer
    x = 5,155.46

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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.