Home / 10,290.49-15,456.42-6,138.61

Finding the Fourth Proportional to 10,290.49, 15,456.42 and 6,138.61

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Solution

The fourth proportional to 10,290.49, 15,456.42 and 6,138.61 is: 9,220.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,290.49 : 15,456.42 = 6,138.61 : x
  2. Step 2: Convert to fraction form
    10,290.49/15,456.42 = 6,138.61/x
  3. Step 3: Cross multiply
    10,290.49x = 15,456.42 × 6,138.61
  4. Step 4: Simplify right side
    10,290.49x = 94,880,934.38
  5. Step 5: Solve for x
    x = 94,880,934.38/10,290.49
  6. Step 6: Final answer
    x = 9,220.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.