Home / 12,897.07-19,331.89-8,202.31

Finding the Fourth Proportional to 12,897.07, 19,331.89 and 8,202.31

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Solution

The fourth proportional to 12,897.07, 19,331.89 and 8,202.31 is: 12,294.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,897.07 : 19,331.89 = 8,202.31 : x
  2. Step 2: Convert to fraction form
    12,897.07/19,331.89 = 8,202.31/x
  3. Step 3: Cross multiply
    12,897.07x = 19,331.89 × 8,202.31
  4. Step 4: Simplify right side
    12,897.07x = 158,566,154.67
  5. Step 5: Solve for x
    x = 158,566,154.67/12,897.07
  6. Step 6: Final answer
    x = 12,294.74

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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.