Home / 19,774.76-27,299.04-11,389.64

Finding the Fourth Proportional to 19,774.76, 27,299.04 and 11,389.64

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Solution

The fourth proportional to 19,774.76, 27,299.04 and 11,389.64 is: 15,723.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,774.76 : 27,299.04 = 11,389.64 : x
  2. Step 2: Convert to fraction form
    19,774.76/27,299.04 = 11,389.64/x
  3. Step 3: Cross multiply
    19,774.76x = 27,299.04 × 11,389.64
  4. Step 4: Simplify right side
    19,774.76x = 310,926,237.95
  5. Step 5: Solve for x
    x = 310,926,237.95/19,774.76
  6. Step 6: Final answer
    x = 15,723.39

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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.