Home / 8,787.15-12,125.57-4,808.30

Finding the Fourth Proportional to 8,787.15, 12,125.57 and 4,808.30

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Solution

The fourth proportional to 8,787.15, 12,125.57 and 4,808.30 is: 6,635.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,787.15 : 12,125.57 = 4,808.30 : x
  2. Step 2: Convert to fraction form
    8,787.15/12,125.57 = 4,808.30/x
  3. Step 3: Cross multiply
    8,787.15x = 12,125.57 × 4,808.30
  4. Step 4: Simplify right side
    8,787.15x = 58,303,293.56
  5. Step 5: Solve for x
    x = 58,303,293.56/8,787.15
  6. Step 6: Final answer
    x = 6,635.06

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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.