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Finding the Fourth Proportional to 18,148.83, 27,208.13 and 15,803.07

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Solution

The fourth proportional to 18,148.83, 27,208.13 and 15,803.07 is: 23,691.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,148.83 : 27,208.13 = 15,803.07 : x
  2. Step 2: Convert to fraction form
    18,148.83/27,208.13 = 15,803.07/x
  3. Step 3: Cross multiply
    18,148.83x = 27,208.13 × 15,803.07
  4. Step 4: Simplify right side
    18,148.83x = 429,971,903.94
  5. Step 5: Solve for x
    x = 429,971,903.94/18,148.83
  6. Step 6: Final answer
    x = 23,691.44

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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.