Home / 15,081.56-20,798.92-9,416.83

Finding the Fourth Proportional to 15,081.56, 20,798.92 and 9,416.83

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Solution

The fourth proportional to 15,081.56, 20,798.92 and 9,416.83 is: 12,986.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,081.56 : 20,798.92 = 9,416.83 : x
  2. Step 2: Convert to fraction form
    15,081.56/20,798.92 = 9,416.83/x
  3. Step 3: Cross multiply
    15,081.56x = 20,798.92 × 9,416.83
  4. Step 4: Simplify right side
    15,081.56x = 195,859,742.74
  5. Step 5: Solve for x
    x = 195,859,742.74/15,081.56
  6. Step 6: Final answer
    x = 12,986.70

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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.