Home / 12,901.11-17,795.96-8,113.45

Finding the Fourth Proportional to 12,901.11, 17,795.96 and 8,113.45

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Solution

The fourth proportional to 12,901.11, 17,795.96 and 8,113.45 is: 11,191.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,901.11 : 17,795.96 = 8,113.45 : x
  2. Step 2: Convert to fraction form
    12,901.11/17,795.96 = 8,113.45/x
  3. Step 3: Cross multiply
    12,901.11x = 17,795.96 × 8,113.45
  4. Step 4: Simplify right side
    12,901.11x = 144,386,542.68
  5. Step 5: Solve for x
    x = 144,386,542.68/12,901.11
  6. Step 6: Final answer
    x = 11,191.80

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1.5x scale

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.