Home / 12,383.13-17,088.75-7,081.05

Finding the Fourth Proportional to 12,383.13, 17,088.75 and 7,081.05

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Solution

The fourth proportional to 12,383.13, 17,088.75 and 7,081.05 is: 9,771.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,383.13 : 17,088.75 = 7,081.05 : x
  2. Step 2: Convert to fraction form
    12,383.13/17,088.75 = 7,081.05/x
  3. Step 3: Cross multiply
    12,383.13x = 17,088.75 × 7,081.05
  4. Step 4: Simplify right side
    12,383.13x = 121,006,293.19
  5. Step 5: Solve for x
    x = 121,006,293.19/12,383.13
  6. Step 6: Final answer
    x = 9,771.87

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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.