Home / 6,386.91-8,812.59-4,027.68

Finding the Fourth Proportional to 6,386.91, 8,812.59 and 4,027.68

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Solution

The fourth proportional to 6,386.91, 8,812.59 and 4,027.68 is: 5,557.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,386.91 : 8,812.59 = 4,027.68 : x
  2. Step 2: Convert to fraction form
    6,386.91/8,812.59 = 4,027.68/x
  3. Step 3: Cross multiply
    6,386.91x = 8,812.59 × 4,027.68
  4. Step 4: Simplify right side
    6,386.91x = 35,494,292.49
  5. Step 5: Solve for x
    x = 35,494,292.49/6,386.91
  6. Step 6: Final answer
    x = 5,557.35

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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.