Home / 15,127.08-20,872.32-8,838.24

Finding the Fourth Proportional to 15,127.08, 20,872.32 and 8,838.24

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Solution

The fourth proportional to 15,127.08, 20,872.32 and 8,838.24 is: 12,194.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,127.08 : 20,872.32 = 8,838.24 : x
  2. Step 2: Convert to fraction form
    15,127.08/20,872.32 = 8,838.24/x
  3. Step 3: Cross multiply
    15,127.08x = 20,872.32 × 8,838.24
  4. Step 4: Simplify right side
    15,127.08x = 184,474,573.52
  5. Step 5: Solve for x
    x = 184,474,573.52/15,127.08
  6. Step 6: Final answer
    x = 12,194.99

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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.