Home / 13,444.47-20,170.76-5,435.12

Finding the Fourth Proportional to 13,444.47, 20,170.76 and 5,435.12

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Solution

The fourth proportional to 13,444.47, 20,170.76 and 5,435.12 is: 8,154.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,444.47 : 20,170.76 = 5,435.12 : x
  2. Step 2: Convert to fraction form
    13,444.47/20,170.76 = 5,435.12/x
  3. Step 3: Cross multiply
    13,444.47x = 20,170.76 × 5,435.12
  4. Step 4: Simplify right side
    13,444.47x = 109,630,524.34
  5. Step 5: Solve for x
    x = 109,630,524.34/13,444.47
  6. Step 6: Final answer
    x = 8,154.32

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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.