Home / 13,607.66-20,402.21-6,927.75

Finding the Fourth Proportional to 13,607.66, 20,402.21 and 6,927.75

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Solution

The fourth proportional to 13,607.66, 20,402.21 and 6,927.75 is: 10,386.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,607.66 : 20,402.21 = 6,927.75 : x
  2. Step 2: Convert to fraction form
    13,607.66/20,402.21 = 6,927.75/x
  3. Step 3: Cross multiply
    13,607.66x = 20,402.21 × 6,927.75
  4. Step 4: Simplify right side
    13,607.66x = 141,341,375.69
  5. Step 5: Solve for x
    x = 141,341,375.69/13,607.66
  6. Step 6: Final answer
    x = 10,386.90

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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.