Home / 7,875.36-10,858.32-6,377.76

Finding the Fourth Proportional to 7,875.36, 10,858.32 and 6,377.76

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Solution

The fourth proportional to 7,875.36, 10,858.32 and 6,377.76 is: 8,793.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,875.36 : 10,858.32 = 6,377.76 : x
  2. Step 2: Convert to fraction form
    7,875.36/10,858.32 = 6,377.76/x
  3. Step 3: Cross multiply
    7,875.36x = 10,858.32 × 6,377.76
  4. Step 4: Simplify right side
    7,875.36x = 69,251,758.96
  5. Step 5: Solve for x
    x = 69,251,758.96/7,875.36
  6. Step 6: Final answer
    x = 8,793.47

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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.