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Finding the Fourth Proportional to 15,375.84, 23,048.64 and 5,513.28

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Solution

The fourth proportional to 15,375.84, 23,048.64 and 5,513.28 is: 8,264.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,375.84 : 23,048.64 = 5,513.28 : x
  2. Step 2: Convert to fraction form
    15,375.84/23,048.64 = 5,513.28/x
  3. Step 3: Cross multiply
    15,375.84x = 23,048.64 × 5,513.28
  4. Step 4: Simplify right side
    15,375.84x = 127,073,605.94
  5. Step 5: Solve for x
    x = 127,073,605.94/15,375.84
  6. Step 6: Final answer
    x = 8,264.50

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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.