Home / 7,775.04-10,717.44-7,191.36

Finding the Fourth Proportional to 7,775.04, 10,717.44 and 7,191.36

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Solution

The fourth proportional to 7,775.04, 10,717.44 and 7,191.36 is: 9,912.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,775.04 : 10,717.44 = 7,191.36 : x
  2. Step 2: Convert to fraction form
    7,775.04/10,717.44 = 7,191.36/x
  3. Step 3: Cross multiply
    7,775.04x = 10,717.44 × 7,191.36
  4. Step 4: Simplify right side
    7,775.04x = 77,072,969.32
  5. Step 5: Solve for x
    x = 77,072,969.32/7,775.04
  6. Step 6: Final answer
    x = 9,912.87

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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.