Home / 11,219.67-15,482.61-6,505.47

Finding the Fourth Proportional to 11,219.67, 15,482.61 and 6,505.47

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Solution

The fourth proportional to 11,219.67, 15,482.61 and 6,505.47 is: 8,977.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,219.67 : 15,482.61 = 6,505.47 : x
  2. Step 2: Convert to fraction form
    11,219.67/15,482.61 = 6,505.47/x
  3. Step 3: Cross multiply
    11,219.67x = 15,482.61 × 6,505.47
  4. Step 4: Simplify right side
    11,219.67x = 100,721,654.88
  5. Step 5: Solve for x
    x = 100,721,654.88/11,219.67
  6. Step 6: Final answer
    x = 8,977.24

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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.