Home / 15,347.80-21,183.15-9,062.20

Finding the Fourth Proportional to 15,347.80, 21,183.15 and 9,062.20

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Solution

The fourth proportional to 15,347.80, 21,183.15 and 9,062.20 is: 12,507.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,347.80 : 21,183.15 = 9,062.20 : x
  2. Step 2: Convert to fraction form
    15,347.80/21,183.15 = 9,062.20/x
  3. Step 3: Cross multiply
    15,347.80x = 21,183.15 × 9,062.20
  4. Step 4: Simplify right side
    15,347.80x = 191,965,941.93
  5. Step 5: Solve for x
    x = 191,965,941.93/15,347.80
  6. Step 6: Final answer
    x = 12,507.72

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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.