Home / 18,888.69-28,334.05-5,740.07

Finding the Fourth Proportional to 18,888.69, 28,334.05 and 5,740.07

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Solution

The fourth proportional to 18,888.69, 28,334.05 and 5,740.07 is: 8,610.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,888.69 : 28,334.05 = 5,740.07 : x
  2. Step 2: Convert to fraction form
    18,888.69/28,334.05 = 5,740.07/x
  3. Step 3: Cross multiply
    18,888.69x = 28,334.05 × 5,740.07
  4. Step 4: Simplify right side
    18,888.69x = 162,639,306.65
  5. Step 5: Solve for x
    x = 162,639,306.65/18,888.69
  6. Step 6: Final answer
    x = 8,610.41

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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.