Home / 13,521.28-20,266.80-6,114.64

Finding the Fourth Proportional to 13,521.28, 20,266.80 and 6,114.64

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Solution

The fourth proportional to 13,521.28, 20,266.80 and 6,114.64 is: 9,165.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,521.28 : 20,266.80 = 6,114.64 : x
  2. Step 2: Convert to fraction form
    13,521.28/20,266.80 = 6,114.64/x
  3. Step 3: Cross multiply
    13,521.28x = 20,266.80 × 6,114.64
  4. Step 4: Simplify right side
    13,521.28x = 123,924,185.95
  5. Step 5: Solve for x
    x = 123,924,185.95/13,521.28
  6. Step 6: Final answer
    x = 9,165.12

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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.