Home / 15,275.32-21,089.46-11,731.48

Finding the Fourth Proportional to 15,275.32, 21,089.46 and 11,731.48

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Solution

The fourth proportional to 15,275.32, 21,089.46 and 11,731.48 is: 16,196.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,275.32 : 21,089.46 = 11,731.48 : x
  2. Step 2: Convert to fraction form
    15,275.32/21,089.46 = 11,731.48/x
  3. Step 3: Cross multiply
    15,275.32x = 21,089.46 × 11,731.48
  4. Step 4: Simplify right side
    15,275.32x = 247,410,578.20
  5. Step 5: Solve for x
    x = 247,410,578.20/15,275.32
  6. Step 6: Final answer
    x = 16,196.75

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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.