Home / 15,262.80-21,062.28-8,975.56

Finding the Fourth Proportional to 15,262.80, 21,062.28 and 8,975.56

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Solution

The fourth proportional to 15,262.80, 21,062.28 and 8,975.56 is: 12,386.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,262.80 : 21,062.28 = 8,975.56 : x
  2. Step 2: Convert to fraction form
    15,262.80/21,062.28 = 8,975.56/x
  3. Step 3: Cross multiply
    15,262.80x = 21,062.28 × 8,975.56
  4. Step 4: Simplify right side
    15,262.80x = 189,045,757.88
  5. Step 5: Solve for x
    x = 189,045,757.88/15,262.80
  6. Step 6: Final answer
    x = 12,386.05

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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.