Home / 9,869.11-13,619.15-5,392.88

Finding the Fourth Proportional to 9,869.11, 13,619.15 and 5,392.88

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Solution

The fourth proportional to 9,869.11, 13,619.15 and 5,392.88 is: 7,442.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,869.11 : 13,619.15 = 5,392.88 : x
  2. Step 2: Convert to fraction form
    9,869.11/13,619.15 = 5,392.88/x
  3. Step 3: Cross multiply
    9,869.11x = 13,619.15 × 5,392.88
  4. Step 4: Simplify right side
    9,869.11x = 73,446,441.65
  5. Step 5: Solve for x
    x = 73,446,441.65/9,869.11
  6. Step 6: Final answer
    x = 7,442.05

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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.