Home / 7,868.70-10,856.61-4,884.66

Finding the Fourth Proportional to 7,868.70, 10,856.61 and 4,884.66

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Solution

The fourth proportional to 7,868.70, 10,856.61 and 4,884.66 is: 6,739.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,868.70 : 10,856.61 = 4,884.66 : x
  2. Step 2: Convert to fraction form
    7,868.70/10,856.61 = 4,884.66/x
  3. Step 3: Cross multiply
    7,868.70x = 10,856.61 × 4,884.66
  4. Step 4: Simplify right side
    7,868.70x = 53,030,848.60
  5. Step 5: Solve for x
    x = 53,030,848.60/7,868.70
  6. Step 6: Final answer
    x = 6,739.47

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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.