Home / 9,161.20-12,642.48-4,969.45

Finding the Fourth Proportional to 9,161.20, 12,642.48 and 4,969.45

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Solution

The fourth proportional to 9,161.20, 12,642.48 and 4,969.45 is: 6,857.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,161.20 : 12,642.48 = 4,969.45 : x
  2. Step 2: Convert to fraction form
    9,161.20/12,642.48 = 4,969.45/x
  3. Step 3: Cross multiply
    9,161.20x = 12,642.48 × 4,969.45
  4. Step 4: Simplify right side
    9,161.20x = 62,826,188.04
  5. Step 5: Solve for x
    x = 62,826,188.04/9,161.20
  6. Step 6: Final answer
    x = 6,857.85

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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.