Home / 8,851.05-13,278.52-2,929.78

Finding the Fourth Proportional to 8,851.05, 13,278.52 and 2,929.78

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Solution

The fourth proportional to 8,851.05, 13,278.52 and 2,929.78 is: 4,395.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,851.05 : 13,278.52 = 2,929.78 : x
  2. Step 2: Convert to fraction form
    8,851.05/13,278.52 = 2,929.78/x
  3. Step 3: Cross multiply
    8,851.05x = 13,278.52 × 2,929.78
  4. Step 4: Simplify right side
    8,851.05x = 38,903,075.93
  5. Step 5: Solve for x
    x = 38,903,075.93/8,851.05
  6. Step 6: Final answer
    x = 4,395.31

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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.