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Finding the Fourth Proportional to 8,750.51, 13,131.25 and 5,830.87

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Solution

The fourth proportional to 8,750.51, 13,131.25 and 5,830.87 is: 8,749.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,750.51 : 13,131.25 = 5,830.87 : x
  2. Step 2: Convert to fraction form
    8,750.51/13,131.25 = 5,830.87/x
  3. Step 3: Cross multiply
    8,750.51x = 13,131.25 × 5,830.87
  4. Step 4: Simplify right side
    8,750.51x = 76,566,564.28
  5. Step 5: Solve for x
    x = 76,566,564.28/8,750.51
  6. Step 6: Final answer
    x = 8,749.95

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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.