Home / 7,881.75-10,876.86-4,345.29

Finding the Fourth Proportional to 7,881.75, 10,876.86 and 4,345.29

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Solution

The fourth proportional to 7,881.75, 10,876.86 and 4,345.29 is: 5,996.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,881.75 : 10,876.86 = 4,345.29 : x
  2. Step 2: Convert to fraction form
    7,881.75/10,876.86 = 4,345.29/x
  3. Step 3: Cross multiply
    7,881.75x = 10,876.86 × 4,345.29
  4. Step 4: Simplify right side
    7,881.75x = 47,263,110.99
  5. Step 5: Solve for x
    x = 47,263,110.99/7,881.75
  6. Step 6: Final answer
    x = 5,996.53

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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.