Home / 15,927.52-21,993.24-13,288.76

Finding the Fourth Proportional to 15,927.52, 21,993.24 and 13,288.76

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Solution

The fourth proportional to 15,927.52, 21,993.24 and 13,288.76 is: 18,349.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,927.52 : 21,993.24 = 13,288.76 : x
  2. Step 2: Convert to fraction form
    15,927.52/21,993.24 = 13,288.76/x
  3. Step 3: Cross multiply
    15,927.52x = 21,993.24 × 13,288.76
  4. Step 4: Simplify right side
    15,927.52x = 292,262,887.98
  5. Step 5: Solve for x
    x = 292,262,887.98/15,927.52
  6. Step 6: Final answer
    x = 18,349.55

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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.