Home / 11,214.59-15,482.55-7,442.87

Finding the Fourth Proportional to 11,214.59, 15,482.55 and 7,442.87

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Solution

The fourth proportional to 11,214.59, 15,482.55 and 7,442.87 is: 10,275.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,214.59 : 15,482.55 = 7,442.87 : x
  2. Step 2: Convert to fraction form
    11,214.59/15,482.55 = 7,442.87/x
  3. Step 3: Cross multiply
    11,214.59x = 15,482.55 × 7,442.87
  4. Step 4: Simplify right side
    11,214.59x = 115,234,606.92
  5. Step 5: Solve for x
    x = 115,234,606.92/11,214.59
  6. Step 6: Final answer
    x = 10,275.42

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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.