Home / 7,881.67-10,876.56-4,345.21

Finding the Fourth Proportional to 7,881.67, 10,876.56 and 4,345.21

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Solution

The fourth proportional to 7,881.67, 10,876.56 and 4,345.21 is: 5,996.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,881.67 : 10,876.56 = 4,345.21 : x
  2. Step 2: Convert to fraction form
    7,881.67/10,876.56 = 4,345.21/x
  3. Step 3: Cross multiply
    7,881.67x = 10,876.56 × 4,345.21
  4. Step 4: Simplify right side
    7,881.67x = 47,260,937.28
  5. Step 5: Solve for x
    x = 47,260,937.28/7,881.67
  6. Step 6: Final answer
    x = 5,996.31

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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.