Home / 7,575.20-10,455.72-6,787.88

Finding the Fourth Proportional to 7,575.20, 10,455.72 and 6,787.88

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Solution

The fourth proportional to 7,575.20, 10,455.72 and 6,787.88 is: 9,369.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,575.20 : 10,455.72 = 6,787.88 : x
  2. Step 2: Convert to fraction form
    7,575.20/10,455.72 = 6,787.88/x
  3. Step 3: Cross multiply
    7,575.20x = 10,455.72 × 6,787.88
  4. Step 4: Simplify right side
    7,575.20x = 70,972,172.67
  5. Step 5: Solve for x
    x = 70,972,172.67/7,575.20
  6. Step 6: Final answer
    x = 9,369.02

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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.