Home / 7,717.24-10,655.81-5,921.85

Finding the Fourth Proportional to 7,717.24, 10,655.81 and 5,921.85

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Solution

The fourth proportional to 7,717.24, 10,655.81 and 5,921.85 is: 8,176.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,717.24 : 10,655.81 = 5,921.85 : x
  2. Step 2: Convert to fraction form
    7,717.24/10,655.81 = 5,921.85/x
  3. Step 3: Cross multiply
    7,717.24x = 10,655.81 × 5,921.85
  4. Step 4: Simplify right side
    7,717.24x = 63,102,108.45
  5. Step 5: Solve for x
    x = 63,102,108.45/7,717.24
  6. Step 6: Final answer
    x = 8,176.77

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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.