Home / 7,868.24-10,856.40-4,884.56

Finding the Fourth Proportional to 7,868.24, 10,856.40 and 4,884.56

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Solution

The fourth proportional to 7,868.24, 10,856.40 and 4,884.56 is: 6,739.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,868.24 : 10,856.40 = 4,884.56 : x
  2. Step 2: Convert to fraction form
    7,868.24/10,856.40 = 4,884.56/x
  3. Step 3: Cross multiply
    7,868.24x = 10,856.40 × 4,884.56
  4. Step 4: Simplify right side
    7,868.24x = 53,028,737.18
  5. Step 5: Solve for x
    x = 53,028,737.18/7,868.24
  6. Step 6: Final answer
    x = 6,739.59

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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.