Home / 15,009.06-20,712.31-8,294.52

Finding the Fourth Proportional to 15,009.06, 20,712.31 and 8,294.52

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Solution

The fourth proportional to 15,009.06, 20,712.31 and 8,294.52 is: 11,446.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,009.06 : 20,712.31 = 8,294.52 : x
  2. Step 2: Convert to fraction form
    15,009.06/20,712.31 = 8,294.52/x
  3. Step 3: Cross multiply
    15,009.06x = 20,712.31 × 8,294.52
  4. Step 4: Simplify right side
    15,009.06x = 171,798,609.97
  5. Step 5: Solve for x
    x = 171,798,609.97/15,009.06
  6. Step 6: Final answer
    x = 11,446.32

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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.