Home / 15,111.86-20,852.62-8,824.82

Finding the Fourth Proportional to 15,111.86, 20,852.62 and 8,824.82

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Solution

The fourth proportional to 15,111.86, 20,852.62 and 8,824.82 is: 12,177.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,111.86 : 20,852.62 = 8,824.82 : x
  2. Step 2: Convert to fraction form
    15,111.86/20,852.62 = 8,824.82/x
  3. Step 3: Cross multiply
    15,111.86x = 20,852.62 × 8,824.82
  4. Step 4: Simplify right side
    15,111.86x = 184,020,618.03
  5. Step 5: Solve for x
    x = 184,020,618.03/15,111.86
  6. Step 6: Final answer
    x = 12,177.23

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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.