Home / 18,918.08-28,386.72-8,527.52

Finding the Fourth Proportional to 18,918.08, 28,386.72 and 8,527.52

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Solution

The fourth proportional to 18,918.08, 28,386.72 and 8,527.52 is: 12,795.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,918.08 : 28,386.72 = 8,527.52 : x
  2. Step 2: Convert to fraction form
    18,918.08/28,386.72 = 8,527.52/x
  3. Step 3: Cross multiply
    18,918.08x = 28,386.72 × 8,527.52
  4. Step 4: Simplify right side
    18,918.08x = 242,068,322.53
  5. Step 5: Solve for x
    x = 242,068,322.53/18,918.08
  6. Step 6: Final answer
    x = 12,795.61

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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.