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Finding the Fourth Proportional to 15,352.72, 23,041.36 and 7,959.28

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Solution

The fourth proportional to 15,352.72, 23,041.36 and 7,959.28 is: 11,945.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,352.72 : 23,041.36 = 7,959.28 : x
  2. Step 2: Convert to fraction form
    15,352.72/23,041.36 = 7,959.28/x
  3. Step 3: Cross multiply
    15,352.72x = 23,041.36 × 7,959.28
  4. Step 4: Simplify right side
    15,352.72x = 183,392,635.82
  5. Step 5: Solve for x
    x = 183,392,635.82/15,352.72
  6. Step 6: Final answer
    x = 11,945.29

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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.