Home / 19,818.12-27,348.86-10,866

Finding the Fourth Proportional to 19,818.12, 27,348.86 and 10,866

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Solution

The fourth proportional to 19,818.12, 27,348.86 and 10,866 is: 14,995.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,818.12 : 27,348.86 = 10,866 : x
  2. Step 2: Convert to fraction form
    19,818.12/27,348.86 = 10,866/x
  3. Step 3: Cross multiply
    19,818.12x = 27,348.86 × 10,866
  4. Step 4: Simplify right side
    19,818.12x = 297,172,712.76
  5. Step 5: Solve for x
    x = 297,172,712.76/19,818.12
  6. Step 6: Final answer
    x = 14,995.00

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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.