Home / 9,864.88-13,613.30-5,388.65

Finding the Fourth Proportional to 9,864.88, 13,613.30 and 5,388.65

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Solution

The fourth proportional to 9,864.88, 13,613.30 and 5,388.65 is: 7,436.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,864.88 : 13,613.30 = 5,388.65 : x
  2. Step 2: Convert to fraction form
    9,864.88/13,613.30 = 5,388.65/x
  3. Step 3: Cross multiply
    9,864.88x = 13,613.30 × 5,388.65
  4. Step 4: Simplify right side
    9,864.88x = 73,357,315.60
  5. Step 5: Solve for x
    x = 73,357,315.60/9,864.88
  6. Step 6: Final answer
    x = 7,436.21

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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.