Home / 12,316.68-18,468.38-5,383.08

Finding the Fourth Proportional to 12,316.68, 18,468.38 and 5,383.08

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Solution

The fourth proportional to 12,316.68, 18,468.38 and 5,383.08 is: 8,071.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,316.68 : 18,468.38 = 5,383.08 : x
  2. Step 2: Convert to fraction form
    12,316.68/18,468.38 = 5,383.08/x
  3. Step 3: Cross multiply
    12,316.68x = 18,468.38 × 5,383.08
  4. Step 4: Simplify right side
    12,316.68x = 99,416,767.01
  5. Step 5: Solve for x
    x = 99,416,767.01/12,316.68
  6. Step 6: Final answer
    x = 8,071.72

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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.