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Finding the Fourth Proportional to 10,886.88, 15,000.60 and 7,343.88

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Solution

The fourth proportional to 10,886.88, 15,000.60 and 7,343.88 is: 10,118.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,886.88 : 15,000.60 = 7,343.88 : x
  2. Step 2: Convert to fraction form
    10,886.88/15,000.60 = 7,343.88/x
  3. Step 3: Cross multiply
    10,886.88x = 15,000.60 × 7,343.88
  4. Step 4: Simplify right side
    10,886.88x = 110,162,606.33
  5. Step 5: Solve for x
    x = 110,162,606.33/10,886.88
  6. Step 6: Final answer
    x = 10,118.84

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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.