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Finding the Fourth Proportional to 8,803.36, 13,127.45 and 8,724.40

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Solution

The fourth proportional to 8,803.36, 13,127.45 and 8,724.40 is: 13,009.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,803.36 : 13,127.45 = 8,724.40 : x
  2. Step 2: Convert to fraction form
    8,803.36/13,127.45 = 8,724.40/x
  3. Step 3: Cross multiply
    8,803.36x = 13,127.45 × 8,724.40
  4. Step 4: Simplify right side
    8,803.36x = 114,529,124.78
  5. Step 5: Solve for x
    x = 114,529,124.78/8,803.36
  6. Step 6: Final answer
    x = 13,009.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.