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Finding the Fourth Proportional to 8,959.20, 13,401.88 and 7,466.57

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Solution

The fourth proportional to 8,959.20, 13,401.88 and 7,466.57 is: 11,169.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,959.20 : 13,401.88 = 7,466.57 : x
  2. Step 2: Convert to fraction form
    8,959.20/13,401.88 = 7,466.57/x
  3. Step 3: Cross multiply
    8,959.20x = 13,401.88 × 7,466.57
  4. Step 4: Simplify right side
    8,959.20x = 100,066,075.15
  5. Step 5: Solve for x
    x = 100,066,075.15/8,959.20
  6. Step 6: Final answer
    x = 11,169.09

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1.5x scale

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.