Home / 13,637.96-20,456.92-4,278.68

Finding the Fourth Proportional to 13,637.96, 20,456.92 and 4,278.68

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Solution

The fourth proportional to 13,637.96, 20,456.92 and 4,278.68 is: 6,418.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,637.96 : 20,456.92 = 4,278.68 : x
  2. Step 2: Convert to fraction form
    13,637.96/20,456.92 = 4,278.68/x
  3. Step 3: Cross multiply
    13,637.96x = 20,456.92 × 4,278.68
  4. Step 4: Simplify right side
    13,637.96x = 87,528,614.47
  5. Step 5: Solve for x
    x = 87,528,614.47/13,637.96
  6. Step 6: Final answer
    x = 6,418.01

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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.