Home / 15,557.86-21,474.03-8,843.77

Finding the Fourth Proportional to 15,557.86, 21,474.03 and 8,843.77

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Solution

The fourth proportional to 15,557.86, 21,474.03 and 8,843.77 is: 12,206.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,557.86 : 21,474.03 = 8,843.77 : x
  2. Step 2: Convert to fraction form
    15,557.86/21,474.03 = 8,843.77/x
  3. Step 3: Cross multiply
    15,557.86x = 21,474.03 × 8,843.77
  4. Step 4: Simplify right side
    15,557.86x = 189,911,382.29
  5. Step 5: Solve for x
    x = 189,911,382.29/15,557.86
  6. Step 6: Final answer
    x = 12,206.78

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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.