Home / 11,316.60-15,617.07-6,839.55

Finding the Fourth Proportional to 11,316.60, 15,617.07 and 6,839.55

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Solution

The fourth proportional to 11,316.60, 15,617.07 and 6,839.55 is: 9,438.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,316.60 : 15,617.07 = 6,839.55 : x
  2. Step 2: Convert to fraction form
    11,316.60/15,617.07 = 6,839.55/x
  3. Step 3: Cross multiply
    11,316.60x = 15,617.07 × 6,839.55
  4. Step 4: Simplify right side
    11,316.60x = 106,813,731.12
  5. Step 5: Solve for x
    x = 106,813,731.12/11,316.60
  6. Step 6: Final answer
    x = 9,438.68

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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.