Home / 8,342.87-11,508.53-5,355.35

Finding the Fourth Proportional to 8,342.87, 11,508.53 and 5,355.35

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Solution

The fourth proportional to 8,342.87, 11,508.53 and 5,355.35 is: 7,387.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,342.87 : 11,508.53 = 5,355.35 : x
  2. Step 2: Convert to fraction form
    8,342.87/11,508.53 = 5,355.35/x
  3. Step 3: Cross multiply
    8,342.87x = 11,508.53 × 5,355.35
  4. Step 4: Simplify right side
    8,342.87x = 61,632,161.98
  5. Step 5: Solve for x
    x = 61,632,161.98/8,342.87
  6. Step 6: Final answer
    x = 7,387.41

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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.