Home / 13,478.76-20,218.32-5,693.04

Finding the Fourth Proportional to 13,478.76, 20,218.32 and 5,693.04

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Solution

The fourth proportional to 13,478.76, 20,218.32 and 5,693.04 is: 8,539.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,478.76 : 20,218.32 = 5,693.04 : x
  2. Step 2: Convert to fraction form
    13,478.76/20,218.32 = 5,693.04/x
  3. Step 3: Cross multiply
    13,478.76x = 20,218.32 × 5,693.04
  4. Step 4: Simplify right side
    13,478.76x = 115,103,704.49
  5. Step 5: Solve for x
    x = 115,103,704.49/13,478.76
  6. Step 6: Final answer
    x = 8,539.64

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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.