Home / 13,168.28-19,760.64-7,897.58

Finding the Fourth Proportional to 13,168.28, 19,760.64 and 7,897.58

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Solution

The fourth proportional to 13,168.28, 19,760.64 and 7,897.58 is: 11,851.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,168.28 : 19,760.64 = 7,897.58 : x
  2. Step 2: Convert to fraction form
    13,168.28/19,760.64 = 7,897.58/x
  3. Step 3: Cross multiply
    13,168.28x = 19,760.64 × 7,897.58
  4. Step 4: Simplify right side
    13,168.28x = 156,061,235.25
  5. Step 5: Solve for x
    x = 156,061,235.25/13,168.28
  6. Step 6: Final answer
    x = 11,851.30

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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.