Home / 10,207.18-15,308.74-2,809.72

Finding the Fourth Proportional to 10,207.18, 15,308.74 and 2,809.72

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Solution

The fourth proportional to 10,207.18, 15,308.74 and 2,809.72 is: 4,214.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,207.18 : 15,308.74 = 2,809.72 : x
  2. Step 2: Convert to fraction form
    10,207.18/15,308.74 = 2,809.72/x
  3. Step 3: Cross multiply
    10,207.18x = 15,308.74 × 2,809.72
  4. Step 4: Simplify right side
    10,207.18x = 43,013,272.95
  5. Step 5: Solve for x
    x = 43,013,272.95/10,207.18
  6. Step 6: Final answer
    x = 4,214.02

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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.