Home / 9,863.99-13,612.60-5,387.95

Finding the Fourth Proportional to 9,863.99, 13,612.60 and 5,387.95

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Solution

The fourth proportional to 9,863.99, 13,612.60 and 5,387.95 is: 7,435.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,863.99 : 13,612.60 = 5,387.95 : x
  2. Step 2: Convert to fraction form
    9,863.99/13,612.60 = 5,387.95/x
  3. Step 3: Cross multiply
    9,863.99x = 13,612.60 × 5,387.95
  4. Step 4: Simplify right side
    9,863.99x = 73,344,008.17
  5. Step 5: Solve for x
    x = 73,344,008.17/9,863.99
  6. Step 6: Final answer
    x = 7,435.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.