Home / 18,943.59-28,419.50-7,256.82

Finding the Fourth Proportional to 18,943.59, 28,419.50 and 7,256.82

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Solution

The fourth proportional to 18,943.59, 28,419.50 and 7,256.82 is: 10,886.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,943.59 : 28,419.50 = 7,256.82 : x
  2. Step 2: Convert to fraction form
    18,943.59/28,419.50 = 7,256.82/x
  3. Step 3: Cross multiply
    18,943.59x = 28,419.50 × 7,256.82
  4. Step 4: Simplify right side
    18,943.59x = 206,235,159.71
  5. Step 5: Solve for x
    x = 206,235,159.71/18,943.59
  6. Step 6: Final answer
    x = 10,886.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.