Home / 19,818.88-27,350.43-10,865.85

Finding the Fourth Proportional to 19,818.88, 27,350.43 and 10,865.85

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Solution

The fourth proportional to 19,818.88, 27,350.43 and 10,865.85 is: 14,995.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,818.88 : 27,350.43 = 10,865.85 : x
  2. Step 2: Convert to fraction form
    19,818.88/27,350.43 = 10,865.85/x
  3. Step 3: Cross multiply
    19,818.88x = 27,350.43 × 10,865.85
  4. Step 4: Simplify right side
    19,818.88x = 297,185,526.50
  5. Step 5: Solve for x
    x = 297,185,526.50/19,818.88
  6. Step 6: Final answer
    x = 14,995.07

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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.