Home / 10,442.10-15,645.54-5,170.08

Finding the Fourth Proportional to 10,442.10, 15,645.54 and 5,170.08

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Solution

The fourth proportional to 10,442.10, 15,645.54 and 5,170.08 is: 7,746.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,442.10 : 15,645.54 = 5,170.08 : x
  2. Step 2: Convert to fraction form
    10,442.10/15,645.54 = 5,170.08/x
  3. Step 3: Cross multiply
    10,442.10x = 15,645.54 × 5,170.08
  4. Step 4: Simplify right side
    10,442.10x = 80,888,693.44
  5. Step 5: Solve for x
    x = 80,888,693.44/10,442.10
  6. Step 6: Final answer
    x = 7,746.40

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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.