Home / 7,861.12-10,852.48-5,356.48

Finding the Fourth Proportional to 7,861.12, 10,852.48 and 5,356.48

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Solution

The fourth proportional to 7,861.12, 10,852.48 and 5,356.48 is: 7,394.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,861.12 : 10,852.48 = 5,356.48 : x
  2. Step 2: Convert to fraction form
    7,861.12/10,852.48 = 5,356.48/x
  3. Step 3: Cross multiply
    7,861.12x = 10,852.48 × 5,356.48
  4. Step 4: Simplify right side
    7,861.12x = 58,131,092.07
  5. Step 5: Solve for x
    x = 58,131,092.07/7,861.12
  6. Step 6: Final answer
    x = 7,394.76

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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.