Home / 15,246.47-20,993.39-13,347.42

Finding the Fourth Proportional to 15,246.47, 20,993.39 and 13,347.42

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Solution

The fourth proportional to 15,246.47, 20,993.39 and 13,347.42 is: 18,378.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,246.47 : 20,993.39 = 13,347.42 : x
  2. Step 2: Convert to fraction form
    15,246.47/20,993.39 = 13,347.42/x
  3. Step 3: Cross multiply
    15,246.47x = 20,993.39 × 13,347.42
  4. Step 4: Simplify right side
    15,246.47x = 280,207,593.55
  5. Step 5: Solve for x
    x = 280,207,593.55/15,246.47
  6. Step 6: Final answer
    x = 18,378.52

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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.