Home / 9,521.25-13,136.13-5,539.11

Finding the Fourth Proportional to 9,521.25, 13,136.13 and 5,539.11

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Solution

The fourth proportional to 9,521.25, 13,136.13 and 5,539.11 is: 7,642.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,521.25 : 13,136.13 = 5,539.11 : x
  2. Step 2: Convert to fraction form
    9,521.25/13,136.13 = 5,539.11/x
  3. Step 3: Cross multiply
    9,521.25x = 13,136.13 × 5,539.11
  4. Step 4: Simplify right side
    9,521.25x = 72,762,469.04
  5. Step 5: Solve for x
    x = 72,762,469.04/9,521.25
  6. Step 6: Final answer
    x = 7,642.11

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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.