Home / 15,573.08-21,490.82-8,499.56

Finding the Fourth Proportional to 15,573.08, 21,490.82 and 8,499.56

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Solution

The fourth proportional to 15,573.08, 21,490.82 and 8,499.56 is: 11,729.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,573.08 : 21,490.82 = 8,499.56 : x
  2. Step 2: Convert to fraction form
    15,573.08/21,490.82 = 8,499.56/x
  3. Step 3: Cross multiply
    15,573.08x = 21,490.82 × 8,499.56
  4. Step 4: Simplify right side
    15,573.08x = 182,662,514.04
  5. Step 5: Solve for x
    x = 182,662,514.04/15,573.08
  6. Step 6: Final answer
    x = 11,729.38

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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.