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Finding the Fourth Proportional to 18,217, 27,307.74 and 9,332.32

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Solution

The fourth proportional to 18,217, 27,307.74 and 9,332.32 is: 13,989.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,217 : 27,307.74 = 9,332.32 : x
  2. Step 2: Convert to fraction form
    18,217/27,307.74 = 9,332.32/x
  3. Step 3: Cross multiply
    18,217x = 27,307.74 × 9,332.32
  4. Step 4: Simplify right side
    18,217x = 254,844,568.16
  5. Step 5: Solve for x
    x = 254,844,568.16/18,217
  6. Step 6: Final answer
    x = 13,989.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.