Home / 8,159.19-12,240.36-3,479.12

Finding the Fourth Proportional to 8,159.19, 12,240.36 and 3,479.12

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Solution

The fourth proportional to 8,159.19, 12,240.36 and 3,479.12 is: 5,219.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,159.19 : 12,240.36 = 3,479.12 : x
  2. Step 2: Convert to fraction form
    8,159.19/12,240.36 = 3,479.12/x
  3. Step 3: Cross multiply
    8,159.19x = 12,240.36 × 3,479.12
  4. Step 4: Simplify right side
    8,159.19x = 42,585,681.28
  5. Step 5: Solve for x
    x = 42,585,681.28/8,159.19
  6. Step 6: Final answer
    x = 5,219.35

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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.