Home / 15,214.96-20,996.80-8,500.84

Finding the Fourth Proportional to 15,214.96, 20,996.80 and 8,500.84

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Solution

The fourth proportional to 15,214.96, 20,996.80 and 8,500.84 is: 11,731.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,214.96 : 20,996.80 = 8,500.84 : x
  2. Step 2: Convert to fraction form
    15,214.96/20,996.80 = 8,500.84/x
  3. Step 3: Cross multiply
    15,214.96x = 20,996.80 × 8,500.84
  4. Step 4: Simplify right side
    15,214.96x = 178,490,437.31
  5. Step 5: Solve for x
    x = 178,490,437.31/15,214.96
  6. Step 6: Final answer
    x = 11,731.25

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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.