Home / 19,176.93-28,770.03-9,189.18

Finding the Fourth Proportional to 19,176.93, 28,770.03 and 9,189.18

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Solution

The fourth proportional to 19,176.93, 28,770.03 and 9,189.18 is: 13,785.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,176.93 : 28,770.03 = 9,189.18 : x
  2. Step 2: Convert to fraction form
    19,176.93/28,770.03 = 9,189.18/x
  3. Step 3: Cross multiply
    19,176.93x = 28,770.03 × 9,189.18
  4. Step 4: Simplify right side
    19,176.93x = 264,372,984.28
  5. Step 5: Solve for x
    x = 264,372,984.28/19,176.93
  6. Step 6: Final answer
    x = 13,785.99

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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.