Home / 18,898.19-28,345.48-4,857.79

Finding the Fourth Proportional to 18,898.19, 28,345.48 and 4,857.79

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Solution

The fourth proportional to 18,898.19, 28,345.48 and 4,857.79 is: 7,286.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,898.19 : 28,345.48 = 4,857.79 : x
  2. Step 2: Convert to fraction form
    18,898.19/28,345.48 = 4,857.79/x
  3. Step 3: Cross multiply
    18,898.19x = 28,345.48 × 4,857.79
  4. Step 4: Simplify right side
    18,898.19x = 137,696,389.29
  5. Step 5: Solve for x
    x = 137,696,389.29/18,898.19
  6. Step 6: Final answer
    x = 7,286.22

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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.