Home / 10,876.61-15,001.39-7,290.44

Finding the Fourth Proportional to 10,876.61, 15,001.39 and 7,290.44

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Solution

The fourth proportional to 10,876.61, 15,001.39 and 7,290.44 is: 10,055.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,876.61 : 15,001.39 = 7,290.44 : x
  2. Step 2: Convert to fraction form
    10,876.61/15,001.39 = 7,290.44/x
  3. Step 3: Cross multiply
    10,876.61x = 15,001.39 × 7,290.44
  4. Step 4: Simplify right side
    10,876.61x = 109,366,733.71
  5. Step 5: Solve for x
    x = 109,366,733.71/10,876.61
  6. Step 6: Final answer
    x = 10,055.22

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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.