Home / 6,626.48-9,128.90-5,679.18

Finding the Fourth Proportional to 6,626.48, 9,128.90 and 5,679.18

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Solution

The fourth proportional to 6,626.48, 9,128.90 and 5,679.18 is: 7,823.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,626.48 : 9,128.90 = 5,679.18 : x
  2. Step 2: Convert to fraction form
    6,626.48/9,128.90 = 5,679.18/x
  3. Step 3: Cross multiply
    6,626.48x = 9,128.90 × 5,679.18
  4. Step 4: Simplify right side
    6,626.48x = 51,844,680.50
  5. Step 5: Solve for x
    x = 51,844,680.50/6,626.48
  6. Step 6: Final answer
    x = 7,823.87

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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.