Home / 12,505.95-17,257.51-6,839.57

Finding the Fourth Proportional to 12,505.95, 17,257.51 and 6,839.57

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Solution

The fourth proportional to 12,505.95, 17,257.51 and 6,839.57 is: 9,438.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,505.95 : 17,257.51 = 6,839.57 : x
  2. Step 2: Convert to fraction form
    12,505.95/17,257.51 = 6,839.57/x
  3. Step 3: Cross multiply
    12,505.95x = 17,257.51 × 6,839.57
  4. Step 4: Simplify right side
    12,505.95x = 118,033,913.47
  5. Step 5: Solve for x
    x = 118,033,913.47/12,505.95
  6. Step 6: Final answer
    x = 9,438.22

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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.