Home / 18,858.10-28,287.15-4,818.16

Finding the Fourth Proportional to 18,858.10, 28,287.15 and 4,818.16

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Solution

The fourth proportional to 18,858.10, 28,287.15 and 4,818.16 is: 7,227.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,858.10 : 28,287.15 = 4,818.16 : x
  2. Step 2: Convert to fraction form
    18,858.10/28,287.15 = 4,818.16/x
  3. Step 3: Cross multiply
    18,858.10x = 28,287.15 × 4,818.16
  4. Step 4: Simplify right side
    18,858.10x = 136,291,849.12
  5. Step 5: Solve for x
    x = 136,291,849.12/18,858.10
  6. Step 6: Final answer
    x = 7,227.23

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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.