Home / 19,645.20-27,106.17-11,685.87

Finding the Fourth Proportional to 19,645.20, 27,106.17 and 11,685.87

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Solution

The fourth proportional to 19,645.20, 27,106.17 and 11,685.87 is: 16,124.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,645.20 : 27,106.17 = 11,685.87 : x
  2. Step 2: Convert to fraction form
    19,645.20/27,106.17 = 11,685.87/x
  3. Step 3: Cross multiply
    19,645.20x = 27,106.17 × 11,685.87
  4. Step 4: Simplify right side
    19,645.20x = 316,759,178.82
  5. Step 5: Solve for x
    x = 316,759,178.82/19,645.20
  6. Step 6: Final answer
    x = 16,124.00

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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.