Home / 18,810.63-25,959.89-10,853.39

Finding the Fourth Proportional to 18,810.63, 25,959.89 and 10,853.39

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Solution

The fourth proportional to 18,810.63, 25,959.89 and 10,853.39 is: 14,978.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,810.63 : 25,959.89 = 10,853.39 : x
  2. Step 2: Convert to fraction form
    18,810.63/25,959.89 = 10,853.39/x
  3. Step 3: Cross multiply
    18,810.63x = 25,959.89 × 10,853.39
  4. Step 4: Simplify right side
    18,810.63x = 281,752,902.56
  5. Step 5: Solve for x
    x = 281,752,902.56/18,810.63
  6. Step 6: Final answer
    x = 14,978.39

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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.