Home / 19,799.10-27,308.54-12,718.69

Finding the Fourth Proportional to 19,799.10, 27,308.54 and 12,718.69

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Solution

The fourth proportional to 19,799.10, 27,308.54 and 12,718.69 is: 17,542.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,799.10 : 27,308.54 = 12,718.69 : x
  2. Step 2: Convert to fraction form
    19,799.10/27,308.54 = 12,718.69/x
  3. Step 3: Cross multiply
    19,799.10x = 27,308.54 × 12,718.69
  4. Step 4: Simplify right side
    19,799.10x = 347,328,818.14
  5. Step 5: Solve for x
    x = 347,328,818.14/19,799.10
  6. Step 6: Final answer
    x = 17,542.66

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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.