Home / 15,075.27-20,805.15-8,363.06

Finding the Fourth Proportional to 15,075.27, 20,805.15 and 8,363.06

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Solution

The fourth proportional to 15,075.27, 20,805.15 and 8,363.06 is: 11,541.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,075.27 : 20,805.15 = 8,363.06 : x
  2. Step 2: Convert to fraction form
    15,075.27/20,805.15 = 8,363.06/x
  3. Step 3: Cross multiply
    15,075.27x = 20,805.15 × 8,363.06
  4. Step 4: Simplify right side
    15,075.27x = 173,994,801.13
  5. Step 5: Solve for x
    x = 173,994,801.13/15,075.27
  6. Step 6: Final answer
    x = 11,541.73

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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.