Home / 18,934.65-28,398.69-7,085.25

Finding the Fourth Proportional to 18,934.65, 28,398.69 and 7,085.25

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Solution

The fourth proportional to 18,934.65, 28,398.69 and 7,085.25 is: 10,626.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,934.65 : 28,398.69 = 7,085.25 : x
  2. Step 2: Convert to fraction form
    18,934.65/28,398.69 = 7,085.25/x
  3. Step 3: Cross multiply
    18,934.65x = 28,398.69 × 7,085.25
  4. Step 4: Simplify right side
    18,934.65x = 201,211,818.32
  5. Step 5: Solve for x
    x = 201,211,818.32/18,934.65
  6. Step 6: Final answer
    x = 10,626.65

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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.