Home / 15,416.87-21,273.80-12,237.85

Finding the Fourth Proportional to 15,416.87, 21,273.80 and 12,237.85

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Solution

The fourth proportional to 15,416.87, 21,273.80 and 12,237.85 is: 16,887.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,416.87 : 21,273.80 = 12,237.85 : x
  2. Step 2: Convert to fraction form
    15,416.87/21,273.80 = 12,237.85/x
  3. Step 3: Cross multiply
    15,416.87x = 21,273.80 × 12,237.85
  4. Step 4: Simplify right side
    15,416.87x = 260,345,538.73
  5. Step 5: Solve for x
    x = 260,345,538.73/15,416.87
  6. Step 6: Final answer
    x = 16,887.06

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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.