Home / 7,782.06-11,657.55-5,310.75

Finding the Fourth Proportional to 7,782.06, 11,657.55 and 5,310.75

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Solution

The fourth proportional to 7,782.06, 11,657.55 and 5,310.75 is: 7,955.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,782.06 : 11,657.55 = 5,310.75 : x
  2. Step 2: Convert to fraction form
    7,782.06/11,657.55 = 5,310.75/x
  3. Step 3: Cross multiply
    7,782.06x = 11,657.55 × 5,310.75
  4. Step 4: Simplify right side
    7,782.06x = 61,910,333.66
  5. Step 5: Solve for x
    x = 61,910,333.66/7,782.06
  6. Step 6: Final answer
    x = 7,955.52

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1.5x scale

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.