Home / 14,839.96-20,478.36-8,124.30

Finding the Fourth Proportional to 14,839.96, 20,478.36 and 8,124.30

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Solution

The fourth proportional to 14,839.96, 20,478.36 and 8,124.30 is: 11,211.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,839.96 : 20,478.36 = 8,124.30 : x
  2. Step 2: Convert to fraction form
    14,839.96/20,478.36 = 8,124.30/x
  3. Step 3: Cross multiply
    14,839.96x = 20,478.36 × 8,124.30
  4. Step 4: Simplify right side
    14,839.96x = 166,372,340.15
  5. Step 5: Solve for x
    x = 166,372,340.15/14,839.96
  6. Step 6: Final answer
    x = 11,211.10

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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.