Home / 19,785.18-27,302.85-11,822.70

Finding the Fourth Proportional to 19,785.18, 27,302.85 and 11,822.70

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Solution

The fourth proportional to 19,785.18, 27,302.85 and 11,822.70 is: 16,314.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,785.18 : 27,302.85 = 11,822.70 : x
  2. Step 2: Convert to fraction form
    19,785.18/27,302.85 = 11,822.70/x
  3. Step 3: Cross multiply
    19,785.18x = 27,302.85 × 11,822.70
  4. Step 4: Simplify right side
    19,785.18x = 322,793,404.70
  5. Step 5: Solve for x
    x = 322,793,404.70/19,785.18
  6. Step 6: Final answer
    x = 16,314.91

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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.