Home / 6,418.16-9,630.32-4,777.91

Finding the Fourth Proportional to 6,418.16, 9,630.32 and 4,777.91

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Solution

The fourth proportional to 6,418.16, 9,630.32 and 4,777.91 is: 7,169.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,418.16 : 9,630.32 = 4,777.91 : x
  2. Step 2: Convert to fraction form
    6,418.16/9,630.32 = 4,777.91/x
  3. Step 3: Cross multiply
    6,418.16x = 9,630.32 × 4,777.91
  4. Step 4: Simplify right side
    6,418.16x = 46,012,806.83
  5. Step 5: Solve for x
    x = 46,012,806.83/6,418.16
  6. Step 6: Final answer
    x = 7,169.16

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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.