Home / 15,127.25-20,872.53-8,838.41

Finding the Fourth Proportional to 15,127.25, 20,872.53 and 8,838.41

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Solution

The fourth proportional to 15,127.25, 20,872.53 and 8,838.41 is: 12,195.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,127.25 : 20,872.53 = 8,838.41 : x
  2. Step 2: Convert to fraction form
    15,127.25/20,872.53 = 8,838.41/x
  3. Step 3: Cross multiply
    15,127.25x = 20,872.53 × 8,838.41
  4. Step 4: Simplify right side
    15,127.25x = 184,479,873.51
  5. Step 5: Solve for x
    x = 184,479,873.51/15,127.25
  6. Step 6: Final answer
    x = 12,195.21

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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.