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Finding the Fourth Proportional to 15,000.88, 20,697.06 and 8,627.13

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Solution

The fourth proportional to 15,000.88, 20,697.06 and 8,627.13 is: 11,903.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,000.88 : 20,697.06 = 8,627.13 : x
  2. Step 2: Convert to fraction form
    15,000.88/20,697.06 = 8,627.13/x
  3. Step 3: Cross multiply
    15,000.88x = 20,697.06 × 8,627.13
  4. Step 4: Simplify right side
    15,000.88x = 178,556,227.24
  5. Step 5: Solve for x
    x = 178,556,227.24/15,000.88
  6. Step 6: Final answer
    x = 11,903.05

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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.