Home / 8,748.72-13,122.90-2,905.38

Finding the Fourth Proportional to 8,748.72, 13,122.90 and 2,905.38

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Solution

The fourth proportional to 8,748.72, 13,122.90 and 2,905.38 is: 4,358.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,748.72 : 13,122.90 = 2,905.38 : x
  2. Step 2: Convert to fraction form
    8,748.72/13,122.90 = 2,905.38/x
  3. Step 3: Cross multiply
    8,748.72x = 13,122.90 × 2,905.38
  4. Step 4: Simplify right side
    8,748.72x = 38,127,011.20
  5. Step 5: Solve for x
    x = 38,127,011.20/8,748.72
  6. Step 6: Final answer
    x = 4,358.01

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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.