Home / 19,621.91-27,071.61-11,123.12

Finding the Fourth Proportional to 19,621.91, 27,071.61 and 11,123.12

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Solution

The fourth proportional to 19,621.91, 27,071.61 and 11,123.12 is: 15,346.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,621.91 : 27,071.61 = 11,123.12 : x
  2. Step 2: Convert to fraction form
    19,621.91/27,071.61 = 11,123.12/x
  3. Step 3: Cross multiply
    19,621.91x = 27,071.61 × 11,123.12
  4. Step 4: Simplify right side
    19,621.91x = 301,120,766.62
  5. Step 5: Solve for x
    x = 301,120,766.62/19,621.91
  6. Step 6: Final answer
    x = 15,346.15

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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.