Home / 11,839.95-16,339.05-6,534.78

Finding the Fourth Proportional to 11,839.95, 16,339.05 and 6,534.78

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Solution

The fourth proportional to 11,839.95, 16,339.05 and 6,534.78 is: 9,017.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,839.95 : 16,339.05 = 6,534.78 : x
  2. Step 2: Convert to fraction form
    11,839.95/16,339.05 = 6,534.78/x
  3. Step 3: Cross multiply
    11,839.95x = 16,339.05 × 6,534.78
  4. Step 4: Simplify right side
    11,839.95x = 106,772,097.16
  5. Step 5: Solve for x
    x = 106,772,097.16/11,839.95
  6. Step 6: Final answer
    x = 9,017.95

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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.