Home / 12,726.08-17,561.04-7,136

Finding the Fourth Proportional to 12,726.08, 17,561.04 and 7,136

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Solution

The fourth proportional to 12,726.08, 17,561.04 and 7,136 is: 9,847.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,726.08 : 17,561.04 = 7,136 : x
  2. Step 2: Convert to fraction form
    12,726.08/17,561.04 = 7,136/x
  3. Step 3: Cross multiply
    12,726.08x = 17,561.04 × 7,136
  4. Step 4: Simplify right side
    12,726.08x = 125,315,581.44
  5. Step 5: Solve for x
    x = 125,315,581.44/12,726.08
  6. Step 6: Final answer
    x = 9,847.15

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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.