Home / 13,889.61-19,175.54-9,589.42

Finding the Fourth Proportional to 13,889.61, 19,175.54 and 9,589.42

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Solution

The fourth proportional to 13,889.61, 19,175.54 and 9,589.42 is: 13,238.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,889.61 : 19,175.54 = 9,589.42 : x
  2. Step 2: Convert to fraction form
    13,889.61/19,175.54 = 9,589.42/x
  3. Step 3: Cross multiply
    13,889.61x = 19,175.54 × 9,589.42
  4. Step 4: Simplify right side
    13,889.61x = 183,882,282.81
  5. Step 5: Solve for x
    x = 183,882,282.81/13,889.61
  6. Step 6: Final answer
    x = 13,238.84

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Double scale
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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.