Home / 15,360.36-21,198.56-8,646.24

Finding the Fourth Proportional to 15,360.36, 21,198.56 and 8,646.24

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Solution

The fourth proportional to 15,360.36, 21,198.56 and 8,646.24 is: 11,932.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,360.36 : 21,198.56 = 8,646.24 : x
  2. Step 2: Convert to fraction form
    15,360.36/21,198.56 = 8,646.24/x
  3. Step 3: Cross multiply
    15,360.36x = 21,198.56 × 8,646.24
  4. Step 4: Simplify right side
    15,360.36x = 183,287,837.41
  5. Step 5: Solve for x
    x = 183,287,837.41/15,360.36
  6. Step 6: Final answer
    x = 11,932.52

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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.