Home / 7,780.06-11,677.10-5,275.19

Finding the Fourth Proportional to 7,780.06, 11,677.10 and 5,275.19

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Solution

The fourth proportional to 7,780.06, 11,677.10 and 5,275.19 is: 7,917.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,780.06 : 11,677.10 = 5,275.19 : x
  2. Step 2: Convert to fraction form
    7,780.06/11,677.10 = 5,275.19/x
  3. Step 3: Cross multiply
    7,780.06x = 11,677.10 × 5,275.19
  4. Step 4: Simplify right side
    7,780.06x = 61,598,921.15
  5. Step 5: Solve for x
    x = 61,598,921.15/7,780.06
  6. Step 6: Final answer
    x = 7,917.54

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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.