Home / 17,936.77-26,919.19-12,428.77

Finding the Fourth Proportional to 17,936.77, 26,919.19 and 12,428.77

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Solution

The fourth proportional to 17,936.77, 26,919.19 and 12,428.77 is: 18,652.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,936.77 : 26,919.19 = 12,428.77 : x
  2. Step 2: Convert to fraction form
    17,936.77/26,919.19 = 12,428.77/x
  3. Step 3: Cross multiply
    17,936.77x = 26,919.19 × 12,428.77
  4. Step 4: Simplify right side
    17,936.77x = 334,572,421.10
  5. Step 5: Solve for x
    x = 334,572,421.10/17,936.77
  6. Step 6: Final answer
    x = 18,652.88

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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.