Home / 12,254.16-18,383.84-6,991.70

Finding the Fourth Proportional to 12,254.16, 18,383.84 and 6,991.70

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Solution

The fourth proportional to 12,254.16, 18,383.84 and 6,991.70 is: 10,489.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,254.16 : 18,383.84 = 6,991.70 : x
  2. Step 2: Convert to fraction form
    12,254.16/18,383.84 = 6,991.70/x
  3. Step 3: Cross multiply
    12,254.16x = 18,383.84 × 6,991.70
  4. Step 4: Simplify right side
    12,254.16x = 128,534,294.13
  5. Step 5: Solve for x
    x = 128,534,294.13/12,254.16
  6. Step 6: Final answer
    x = 10,489.03

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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.