Home / 10,879.48-15,010.02-7,521.06

Finding the Fourth Proportional to 10,879.48, 15,010.02 and 7,521.06

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Solution

The fourth proportional to 10,879.48, 15,010.02 and 7,521.06 is: 10,376.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,879.48 : 15,010.02 = 7,521.06 : x
  2. Step 2: Convert to fraction form
    10,879.48/15,010.02 = 7,521.06/x
  3. Step 3: Cross multiply
    10,879.48x = 15,010.02 × 7,521.06
  4. Step 4: Simplify right side
    10,879.48x = 112,891,261.02
  5. Step 5: Solve for x
    x = 112,891,261.02/10,879.48
  6. Step 6: Final answer
    x = 10,376.53

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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.