Home / 12,957,017.28-17,869,903.20-9,701,517.12

Finding the Fourth Proportional to 12,957,017.28, 17,869,903.20 and 9,701,517.12

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Solution

The fourth proportional to 12,957,017.28, 17,869,903.20 and 9,701,517.12 is: 13,380,021.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,957,017.28 : 17,869,903.20 = 9,701,517.12 : x
  2. Step 2: Convert to fraction form
    12,957,017.28/17,869,903.20 = 9,701,517.12/x
  3. Step 3: Cross multiply
    12,957,017.28x = 17,869,903.20 × 9,701,517.12
  4. Step 4: Simplify right side
    12,957,017.28x = 173,365,171,827,542.75
  5. Step 5: Solve for x
    x = 173,365,171,827,542.75/12,957,017.28
  6. Step 6: Final answer
    x = 13,380,021.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.