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Finding the Fourth Proportional to 11,392.12, 15,750.48 and 8,748.28

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Solution

The fourth proportional to 11,392.12, 15,750.48 and 8,748.28 is: 12,095.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,392.12 : 15,750.48 = 8,748.28 : x
  2. Step 2: Convert to fraction form
    11,392.12/15,750.48 = 8,748.28/x
  3. Step 3: Cross multiply
    11,392.12x = 15,750.48 × 8,748.28
  4. Step 4: Simplify right side
    11,392.12x = 137,789,609.17
  5. Step 5: Solve for x
    x = 137,789,609.17/11,392.12
  6. Step 6: Final answer
    x = 12,095.17

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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.