Home / 9,045.18-13,556.43-5,151.78

Finding the Fourth Proportional to 9,045.18, 13,556.43 and 5,151.78

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Solution

The fourth proportional to 9,045.18, 13,556.43 and 5,151.78 is: 7,721.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,045.18 : 13,556.43 = 5,151.78 : x
  2. Step 2: Convert to fraction form
    9,045.18/13,556.43 = 5,151.78/x
  3. Step 3: Cross multiply
    9,045.18x = 13,556.43 × 5,151.78
  4. Step 4: Simplify right side
    9,045.18x = 69,839,744.95
  5. Step 5: Solve for x
    x = 69,839,744.95/9,045.18
  6. Step 6: Final answer
    x = 7,721.21

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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.