Home / 7,819.92-10,787.40-4,834.80

Finding the Fourth Proportional to 7,819.92, 10,787.40 and 4,834.80

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Solution

The fourth proportional to 7,819.92, 10,787.40 and 4,834.80 is: 6,669.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,819.92 : 10,787.40 = 4,834.80 : x
  2. Step 2: Convert to fraction form
    7,819.92/10,787.40 = 4,834.80/x
  3. Step 3: Cross multiply
    7,819.92x = 10,787.40 × 4,834.80
  4. Step 4: Simplify right side
    7,819.92x = 52,154,921.52
  5. Step 5: Solve for x
    x = 52,154,921.52/7,819.92
  6. Step 6: Final answer
    x = 6,669.50

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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.