Home / 15,324.32-21,148.06-8,611.24

Finding the Fourth Proportional to 15,324.32, 21,148.06 and 8,611.24

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Solution

The fourth proportional to 15,324.32, 21,148.06 and 8,611.24 is: 11,883.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,324.32 : 21,148.06 = 8,611.24 : x
  2. Step 2: Convert to fraction form
    15,324.32/21,148.06 = 8,611.24/x
  3. Step 3: Cross multiply
    15,324.32x = 21,148.06 × 8,611.24
  4. Step 4: Simplify right side
    15,324.32x = 182,111,020.19
  5. Step 5: Solve for x
    x = 182,111,020.19/15,324.32
  6. Step 6: Final answer
    x = 11,883.79

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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.