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Finding the Fourth Proportional to 9,018.88, 12,445.24 and 5,039.44

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Solution

The fourth proportional to 9,018.88, 12,445.24 and 5,039.44 is: 6,953.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,018.88 : 12,445.24 = 5,039.44 : x
  2. Step 2: Convert to fraction form
    9,018.88/12,445.24 = 5,039.44/x
  3. Step 3: Cross multiply
    9,018.88x = 12,445.24 × 5,039.44
  4. Step 4: Simplify right side
    9,018.88x = 62,717,040.27
  5. Step 5: Solve for x
    x = 62,717,040.27/9,018.88
  6. Step 6: Final answer
    x = 6,953.97

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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.