Home / 18,705.16-28,061.58-5,556.36

Finding the Fourth Proportional to 18,705.16, 28,061.58 and 5,556.36

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Solution

The fourth proportional to 18,705.16, 28,061.58 and 5,556.36 is: 8,335.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,705.16 : 28,061.58 = 5,556.36 : x
  2. Step 2: Convert to fraction form
    18,705.16/28,061.58 = 5,556.36/x
  3. Step 3: Cross multiply
    18,705.16x = 28,061.58 × 5,556.36
  4. Step 4: Simplify right side
    18,705.16x = 155,920,240.65
  5. Step 5: Solve for x
    x = 155,920,240.65/18,705.16
  6. Step 6: Final answer
    x = 8,335.68

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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.