Home / 19,515.74-26,932.24-11,856.40

Finding the Fourth Proportional to 19,515.74, 26,932.24 and 11,856.40

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Solution

The fourth proportional to 19,515.74, 26,932.24 and 11,856.40 is: 16,362.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,515.74 : 26,932.24 = 11,856.40 : x
  2. Step 2: Convert to fraction form
    19,515.74/26,932.24 = 11,856.40/x
  3. Step 3: Cross multiply
    19,515.74x = 26,932.24 × 11,856.40
  4. Step 4: Simplify right side
    19,515.74x = 319,319,414.36
  5. Step 5: Solve for x
    x = 319,319,414.36/19,515.74
  6. Step 6: Final answer
    x = 16,362.15

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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.