Home / 7,787.20-10,747.37-4,429.37

Finding the Fourth Proportional to 7,787.20, 10,747.37 and 4,429.37

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Solution

The fourth proportional to 7,787.20, 10,747.37 and 4,429.37 is: 6,113.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,787.20 : 10,747.37 = 4,429.37 : x
  2. Step 2: Convert to fraction form
    7,787.20/10,747.37 = 4,429.37/x
  3. Step 3: Cross multiply
    7,787.20x = 10,747.37 × 4,429.37
  4. Step 4: Simplify right side
    7,787.20x = 47,604,002.37
  5. Step 5: Solve for x
    x = 47,604,002.37/7,787.20
  6. Step 6: Final answer
    x = 6,113.11

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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.