Home / 17,857.15-26,785.96-12,309.01

Finding the Fourth Proportional to 17,857.15, 26,785.96 and 12,309.01

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Solution

The fourth proportional to 17,857.15, 26,785.96 and 12,309.01 is: 18,463.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,857.15 : 26,785.96 = 12,309.01 : x
  2. Step 2: Convert to fraction form
    17,857.15/26,785.96 = 12,309.01/x
  3. Step 3: Cross multiply
    17,857.15x = 26,785.96 × 12,309.01
  4. Step 4: Simplify right side
    17,857.15x = 329,708,649.50
  5. Step 5: Solve for x
    x = 329,708,649.50/17,857.15
  6. Step 6: Final answer
    x = 18,463.68

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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.