Home / 9,888.35-13,645.92-5,412.10

Finding the Fourth Proportional to 9,888.35, 13,645.92 and 5,412.10

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Solution

The fourth proportional to 9,888.35, 13,645.92 and 5,412.10 is: 7,468.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,888.35 : 13,645.92 = 5,412.10 : x
  2. Step 2: Convert to fraction form
    9,888.35/13,645.92 = 5,412.10/x
  3. Step 3: Cross multiply
    9,888.35x = 13,645.92 × 5,412.10
  4. Step 4: Simplify right side
    9,888.35x = 73,853,049.52
  5. Step 5: Solve for x
    x = 73,853,049.52/9,888.35
  6. Step 6: Final answer
    x = 7,468.70

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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.