Home / 15,955.18-23,945.53-7,190.78

Finding the Fourth Proportional to 15,955.18, 23,945.53 and 7,190.78

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Solution

The fourth proportional to 15,955.18, 23,945.53 and 7,190.78 is: 10,791.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,955.18 : 23,945.53 = 7,190.78 : x
  2. Step 2: Convert to fraction form
    15,955.18/23,945.53 = 7,190.78/x
  3. Step 3: Cross multiply
    15,955.18x = 23,945.53 × 7,190.78
  4. Step 4: Simplify right side
    15,955.18x = 172,187,068.91
  5. Step 5: Solve for x
    x = 172,187,068.91/15,955.18
  6. Step 6: Final answer
    x = 10,791.92

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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.