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Finding the Fourth Proportional to 11,256.66, 15,540.12 and 7,009.02

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Solution

The fourth proportional to 11,256.66, 15,540.12 and 7,009.02 is: 9,676.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,256.66 : 15,540.12 = 7,009.02 : x
  2. Step 2: Convert to fraction form
    11,256.66/15,540.12 = 7,009.02/x
  3. Step 3: Cross multiply
    11,256.66x = 15,540.12 × 7,009.02
  4. Step 4: Simplify right side
    11,256.66x = 108,921,011.88
  5. Step 5: Solve for x
    x = 108,921,011.88/11,256.66
  6. Step 6: Final answer
    x = 9,676.14

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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.