Home / 8,168.71-11,271.31-4,812.07

Finding the Fourth Proportional to 8,168.71, 11,271.31 and 4,812.07

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Solution

The fourth proportional to 8,168.71, 11,271.31 and 4,812.07 is: 6,639.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,168.71 : 11,271.31 = 4,812.07 : x
  2. Step 2: Convert to fraction form
    8,168.71/11,271.31 = 4,812.07/x
  3. Step 3: Cross multiply
    8,168.71x = 11,271.31 × 4,812.07
  4. Step 4: Simplify right side
    8,168.71x = 54,238,332.71
  5. Step 5: Solve for x
    x = 54,238,332.71/8,168.71
  6. Step 6: Final answer
    x = 6,639.77

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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.