Home / 7,680.12-11,521.84-4,349.94

Finding the Fourth Proportional to 7,680.12, 11,521.84 and 4,349.94

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Solution

The fourth proportional to 7,680.12, 11,521.84 and 4,349.94 is: 6,525.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,680.12 : 11,521.84 = 4,349.94 : x
  2. Step 2: Convert to fraction form
    7,680.12/11,521.84 = 4,349.94/x
  3. Step 3: Cross multiply
    7,680.12x = 11,521.84 × 4,349.94
  4. Step 4: Simplify right side
    7,680.12x = 50,119,312.69
  5. Step 5: Solve for x
    x = 50,119,312.69/7,680.12
  6. Step 6: Final answer
    x = 6,525.85

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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.