Home / 8,386.14-12,569.40-3,449.70

Finding the Fourth Proportional to 8,386.14, 12,569.40 and 3,449.70

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Solution

The fourth proportional to 8,386.14, 12,569.40 and 3,449.70 is: 5,170.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,386.14 : 12,569.40 = 3,449.70 : x
  2. Step 2: Convert to fraction form
    8,386.14/12,569.40 = 3,449.70/x
  3. Step 3: Cross multiply
    8,386.14x = 12,569.40 × 3,449.70
  4. Step 4: Simplify right side
    8,386.14x = 43,360,659.18
  5. Step 5: Solve for x
    x = 43,360,659.18/8,386.14
  6. Step 6: Final answer
    x = 5,170.51

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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.