Home / 7,626.40-11,443.50-5,776.90

Finding the Fourth Proportional to 7,626.40, 11,443.50 and 5,776.90

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Solution

The fourth proportional to 7,626.40, 11,443.50 and 5,776.90 is: 8,668.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,626.40 : 11,443.50 = 5,776.90 : x
  2. Step 2: Convert to fraction form
    7,626.40/11,443.50 = 5,776.90/x
  3. Step 3: Cross multiply
    7,626.40x = 11,443.50 × 5,776.90
  4. Step 4: Simplify right side
    7,626.40x = 66,107,955.15
  5. Step 5: Solve for x
    x = 66,107,955.15/7,626.40
  6. Step 6: Final answer
    x = 8,668.30

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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.