Home / 18,618.30-25,690.41-11,064.47

Finding the Fourth Proportional to 18,618.30, 25,690.41 and 11,064.47

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Solution

The fourth proportional to 18,618.30, 25,690.41 and 11,064.47 is: 15,267.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,618.30 : 25,690.41 = 11,064.47 : x
  2. Step 2: Convert to fraction form
    18,618.30/25,690.41 = 11,064.47/x
  3. Step 3: Cross multiply
    18,618.30x = 25,690.41 × 11,064.47
  4. Step 4: Simplify right side
    18,618.30x = 284,250,642.28
  5. Step 5: Solve for x
    x = 284,250,642.28/18,618.30
  6. Step 6: Final answer
    x = 15,267.27

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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.