Home / 13,245.83-18,278.95-7,195.92

Finding the Fourth Proportional to 13,245.83, 18,278.95 and 7,195.92

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Solution

The fourth proportional to 13,245.83, 18,278.95 and 7,195.92 is: 9,930.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,245.83 : 18,278.95 = 7,195.92 : x
  2. Step 2: Convert to fraction form
    13,245.83/18,278.95 = 7,195.92/x
  3. Step 3: Cross multiply
    13,245.83x = 18,278.95 × 7,195.92
  4. Step 4: Simplify right side
    13,245.83x = 131,533,839.64
  5. Step 5: Solve for x
    x = 131,533,839.64/13,245.83
  6. Step 6: Final answer
    x = 9,930.21

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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.