Home / 7,554.79-11,320.30-6,379.28

Finding the Fourth Proportional to 7,554.79, 11,320.30 and 6,379.28

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Solution

The fourth proportional to 7,554.79, 11,320.30 and 6,379.28 is: 9,558.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,554.79 : 11,320.30 = 6,379.28 : x
  2. Step 2: Convert to fraction form
    7,554.79/11,320.30 = 6,379.28/x
  3. Step 3: Cross multiply
    7,554.79x = 11,320.30 × 6,379.28
  4. Step 4: Simplify right side
    7,554.79x = 72,215,363.38
  5. Step 5: Solve for x
    x = 72,215,363.38/7,554.79
  6. Step 6: Final answer
    x = 9,558.88

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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.