Home / 8,750.03-13,122.18-2,905.07

Finding the Fourth Proportional to 8,750.03, 13,122.18 and 2,905.07

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Solution

The fourth proportional to 8,750.03, 13,122.18 and 2,905.07 is: 4,356.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,750.03 : 13,122.18 = 2,905.07 : x
  2. Step 2: Convert to fraction form
    8,750.03/13,122.18 = 2,905.07/x
  3. Step 3: Cross multiply
    8,750.03x = 13,122.18 × 2,905.07
  4. Step 4: Simplify right side
    8,750.03x = 38,120,851.45
  5. Step 5: Solve for x
    x = 38,120,851.45/8,750.03
  6. Step 6: Final answer
    x = 4,356.65

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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.