Home / 8,319.84-12,476.31-3,386.13

Finding the Fourth Proportional to 8,319.84, 12,476.31 and 3,386.13

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Solution

The fourth proportional to 8,319.84, 12,476.31 and 3,386.13 is: 5,077.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,319.84 : 12,476.31 = 3,386.13 : x
  2. Step 2: Convert to fraction form
    8,319.84/12,476.31 = 3,386.13/x
  3. Step 3: Cross multiply
    8,319.84x = 12,476.31 × 3,386.13
  4. Step 4: Simplify right side
    8,319.84x = 42,246,407.58
  5. Step 5: Solve for x
    x = 42,246,407.58/8,319.84
  6. Step 6: Final answer
    x = 5,077.79

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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.