Home / 7,901.28-10,893.44-6,479.76

Finding the Fourth Proportional to 7,901.28, 10,893.44 and 6,479.76

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Solution

The fourth proportional to 7,901.28, 10,893.44 and 6,479.76 is: 8,933.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,901.28 : 10,893.44 = 6,479.76 : x
  2. Step 2: Convert to fraction form
    7,901.28/10,893.44 = 6,479.76/x
  3. Step 3: Cross multiply
    7,901.28x = 10,893.44 × 6,479.76
  4. Step 4: Simplify right side
    7,901.28x = 70,586,876.77
  5. Step 5: Solve for x
    x = 70,586,876.77/7,901.28
  6. Step 6: Final answer
    x = 8,933.60

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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.