Home / 7,276.43-10,917.93-3,117.53

Finding the Fourth Proportional to 7,276.43, 10,917.93 and 3,117.53

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Solution

The fourth proportional to 7,276.43, 10,917.93 and 3,117.53 is: 4,677.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,276.43 : 10,917.93 = 3,117.53 : x
  2. Step 2: Convert to fraction form
    7,276.43/10,917.93 = 3,117.53/x
  3. Step 3: Cross multiply
    7,276.43x = 10,917.93 × 3,117.53
  4. Step 4: Simplify right side
    7,276.43x = 34,036,974.31
  5. Step 5: Solve for x
    x = 34,036,974.31/7,276.43
  6. Step 6: Final answer
    x = 4,677.70

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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.