Home / 7,823.32-10,787.84-6,396.34

Finding the Fourth Proportional to 7,823.32, 10,787.84 and 6,396.34

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Solution

The fourth proportional to 7,823.32, 10,787.84 and 6,396.34 is: 8,820.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,823.32 : 10,787.84 = 6,396.34 : x
  2. Step 2: Convert to fraction form
    7,823.32/10,787.84 = 6,396.34/x
  3. Step 3: Cross multiply
    7,823.32x = 10,787.84 × 6,396.34
  4. Step 4: Simplify right side
    7,823.32x = 69,002,692.51
  5. Step 5: Solve for x
    x = 69,002,692.51/7,823.32
  6. Step 6: Final answer
    x = 8,820.13

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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.