Home / 11,072.13-15,280.14-6,356.71

Finding the Fourth Proportional to 11,072.13, 15,280.14 and 6,356.71

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Solution

The fourth proportional to 11,072.13, 15,280.14 and 6,356.71 is: 8,772.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,072.13 : 15,280.14 = 6,356.71 : x
  2. Step 2: Convert to fraction form
    11,072.13/15,280.14 = 6,356.71/x
  3. Step 3: Cross multiply
    11,072.13x = 15,280.14 × 6,356.71
  4. Step 4: Simplify right side
    11,072.13x = 97,131,418.74
  5. Step 5: Solve for x
    x = 97,131,418.74/11,072.13
  6. Step 6: Final answer
    x = 8,772.61

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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.