Home / 13,516.96-20,278.02-4,155.31

Finding the Fourth Proportional to 13,516.96, 20,278.02 and 4,155.31

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Solution

The fourth proportional to 13,516.96, 20,278.02 and 4,155.31 is: 6,233.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,516.96 : 20,278.02 = 4,155.31 : x
  2. Step 2: Convert to fraction form
    13,516.96/20,278.02 = 4,155.31/x
  3. Step 3: Cross multiply
    13,516.96x = 20,278.02 × 4,155.31
  4. Step 4: Simplify right side
    13,516.96x = 84,261,459.29
  5. Step 5: Solve for x
    x = 84,261,459.29/13,516.96
  6. Step 6: Final answer
    x = 6,233.76

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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.