Home / 9,827.18-13,561.66-5,578.12

Finding the Fourth Proportional to 9,827.18, 13,561.66 and 5,578.12

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Solution

The fourth proportional to 9,827.18, 13,561.66 and 5,578.12 is: 7,697.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,827.18 : 13,561.66 = 5,578.12 : x
  2. Step 2: Convert to fraction form
    9,827.18/13,561.66 = 5,578.12/x
  3. Step 3: Cross multiply
    9,827.18x = 13,561.66 × 5,578.12
  4. Step 4: Simplify right side
    9,827.18x = 75,648,566.88
  5. Step 5: Solve for x
    x = 75,648,566.88/9,827.18
  6. Step 6: Final answer
    x = 7,697.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.