Home / 13,612.68-20,386.62-9,456.84

Finding the Fourth Proportional to 13,612.68, 20,386.62 and 9,456.84

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Solution

The fourth proportional to 13,612.68, 20,386.62 and 9,456.84 is: 14,162.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,612.68 : 20,386.62 = 9,456.84 : x
  2. Step 2: Convert to fraction form
    13,612.68/20,386.62 = 9,456.84/x
  3. Step 3: Cross multiply
    13,612.68x = 20,386.62 × 9,456.84
  4. Step 4: Simplify right side
    13,612.68x = 192,793,003.48
  5. Step 5: Solve for x
    x = 192,793,003.48/13,612.68
  6. Step 6: Final answer
    x = 14,162.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.