Home / 10,879.47-15,010.02-7,521.08

Finding the Fourth Proportional to 10,879.47, 15,010.02 and 7,521.08

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Solution

The fourth proportional to 10,879.47, 15,010.02 and 7,521.08 is: 10,376.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,879.47 : 15,010.02 = 7,521.08 : x
  2. Step 2: Convert to fraction form
    10,879.47/15,010.02 = 7,521.08/x
  3. Step 3: Cross multiply
    10,879.47x = 15,010.02 × 7,521.08
  4. Step 4: Simplify right side
    10,879.47x = 112,891,486.17
  5. Step 5: Solve for x
    x = 112,891,486.17/10,879.47
  6. Step 6: Final answer
    x = 10,376.56

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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.