Home / 10,295.10-15,442.65-5,111.10

Finding the Fourth Proportional to 10,295.10, 15,442.65 and 5,111.10

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Solution

The fourth proportional to 10,295.10, 15,442.65 and 5,111.10 is: 7,666.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,295.10 : 15,442.65 = 5,111.10 : x
  2. Step 2: Convert to fraction form
    10,295.10/15,442.65 = 5,111.10/x
  3. Step 3: Cross multiply
    10,295.10x = 15,442.65 × 5,111.10
  4. Step 4: Simplify right side
    10,295.10x = 78,928,928.42
  5. Step 5: Solve for x
    x = 78,928,928.42/10,295.10
  6. Step 6: Final answer
    x = 7,666.65

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.