Home / 15,955.72-23,918.71-5,418.53

Finding the Fourth Proportional to 15,955.72, 23,918.71 and 5,418.53

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Solution

The fourth proportional to 15,955.72, 23,918.71 and 5,418.53 is: 8,122.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,955.72 : 23,918.71 = 5,418.53 : x
  2. Step 2: Convert to fraction form
    15,955.72/23,918.71 = 5,418.53/x
  3. Step 3: Cross multiply
    15,955.72x = 23,918.71 × 5,418.53
  4. Step 4: Simplify right side
    15,955.72x = 129,604,247.70
  5. Step 5: Solve for x
    x = 129,604,247.70/15,955.72
  6. Step 6: Final answer
    x = 8,122.75

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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.