Home / 12,393.28-17,102.78-7,088.14

Finding the Fourth Proportional to 12,393.28, 17,102.78 and 7,088.14

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Solution

The fourth proportional to 12,393.28, 17,102.78 and 7,088.14 is: 9,781.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,393.28 : 17,102.78 = 7,088.14 : x
  2. Step 2: Convert to fraction form
    12,393.28/17,102.78 = 7,088.14/x
  3. Step 3: Cross multiply
    12,393.28x = 17,102.78 × 7,088.14
  4. Step 4: Simplify right side
    12,393.28x = 121,226,899.03
  5. Step 5: Solve for x
    x = 121,226,899.03/12,393.28
  6. Step 6: Final answer
    x = 9,781.66

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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.