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Finding the Fourth Proportional to 7,205.35, 9,943.18 and 4,018.74

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Solution

The fourth proportional to 7,205.35, 9,943.18 and 4,018.74 is: 5,545.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,205.35 : 9,943.18 = 4,018.74 : x
  2. Step 2: Convert to fraction form
    7,205.35/9,943.18 = 4,018.74/x
  3. Step 3: Cross multiply
    7,205.35x = 9,943.18 × 4,018.74
  4. Step 4: Simplify right side
    7,205.35x = 39,959,055.19
  5. Step 5: Solve for x
    x = 39,959,055.19/7,205.35
  6. Step 6: Final answer
    x = 5,545.75

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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.