Home / 6,451.20-9,664.79-5,417.91

Finding the Fourth Proportional to 6,451.20, 9,664.79 and 5,417.91

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Solution

The fourth proportional to 6,451.20, 9,664.79 and 5,417.91 is: 8,116.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,451.20 : 9,664.79 = 5,417.91 : x
  2. Step 2: Convert to fraction form
    6,451.20/9,664.79 = 5,417.91/x
  3. Step 3: Cross multiply
    6,451.20x = 9,664.79 × 5,417.91
  4. Step 4: Simplify right side
    6,451.20x = 52,362,935.30
  5. Step 5: Solve for x
    x = 52,362,935.30/6,451.20
  6. Step 6: Final answer
    x = 8,116.77

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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.