Home / 8,075.43-11,140.56-4,929.75

Finding the Fourth Proportional to 8,075.43, 11,140.56 and 4,929.75

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Solution

The fourth proportional to 8,075.43, 11,140.56 and 4,929.75 is: 6,800.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,075.43 : 11,140.56 = 4,929.75 : x
  2. Step 2: Convert to fraction form
    8,075.43/11,140.56 = 4,929.75/x
  3. Step 3: Cross multiply
    8,075.43x = 11,140.56 × 4,929.75
  4. Step 4: Simplify right side
    8,075.43x = 54,920,175.66
  5. Step 5: Solve for x
    x = 54,920,175.66/8,075.43
  6. Step 6: Final answer
    x = 6,800.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.