Home / 8,424.79-11,626.26-4,647.90

Finding the Fourth Proportional to 8,424.79, 11,626.26 and 4,647.90

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Solution

The fourth proportional to 8,424.79, 11,626.26 and 4,647.90 is: 6,414.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,424.79 : 11,626.26 = 4,647.90 : x
  2. Step 2: Convert to fraction form
    8,424.79/11,626.26 = 4,647.90/x
  3. Step 3: Cross multiply
    8,424.79x = 11,626.26 × 4,647.90
  4. Step 4: Simplify right side
    8,424.79x = 54,037,693.85
  5. Step 5: Solve for x
    x = 54,037,693.85/8,424.79
  6. Step 6: Final answer
    x = 6,414.13

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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.