Home / 19,867.68-27,420.12-11,482.56

Finding the Fourth Proportional to 19,867.68, 27,420.12 and 11,482.56

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Solution

The fourth proportional to 19,867.68, 27,420.12 and 11,482.56 is: 15,847.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,867.68 : 27,420.12 = 11,482.56 : x
  2. Step 2: Convert to fraction form
    19,867.68/27,420.12 = 11,482.56/x
  3. Step 3: Cross multiply
    19,867.68x = 27,420.12 × 11,482.56
  4. Step 4: Simplify right side
    19,867.68x = 314,853,173.11
  5. Step 5: Solve for x
    x = 314,853,173.11/19,867.68
  6. Step 6: Final answer
    x = 15,847.51

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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.