Home / 19,774.32-27,288.12-11,275.86

Finding the Fourth Proportional to 19,774.32, 27,288.12 and 11,275.86

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Solution

The fourth proportional to 19,774.32, 27,288.12 and 11,275.86 is: 15,560.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,774.32 : 27,288.12 = 11,275.86 : x
  2. Step 2: Convert to fraction form
    19,774.32/27,288.12 = 11,275.86/x
  3. Step 3: Cross multiply
    19,774.32x = 27,288.12 × 11,275.86
  4. Step 4: Simplify right side
    19,774.32x = 307,697,020.78
  5. Step 5: Solve for x
    x = 307,697,020.78/19,774.32
  6. Step 6: Final answer
    x = 15,560.43

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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.