Home / 8,631.23-12,948.87-2,787.62

Finding the Fourth Proportional to 8,631.23, 12,948.87 and 2,787.62

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Solution

The fourth proportional to 8,631.23, 12,948.87 and 2,787.62 is: 4,182.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,631.23 : 12,948.87 = 2,787.62 : x
  2. Step 2: Convert to fraction form
    8,631.23/12,948.87 = 2,787.62/x
  3. Step 3: Cross multiply
    8,631.23x = 12,948.87 × 2,787.62
  4. Step 4: Simplify right side
    8,631.23x = 36,096,528.99
  5. Step 5: Solve for x
    x = 36,096,528.99/8,631.23
  6. Step 6: Final answer
    x = 4,182.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.