Home / 8,433.71-11,638.47-4,657.12

Finding the Fourth Proportional to 8,433.71, 11,638.47 and 4,657.12

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Solution

The fourth proportional to 8,433.71, 11,638.47 and 4,657.12 is: 6,426.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,433.71 : 11,638.47 = 4,657.12 : x
  2. Step 2: Convert to fraction form
    8,433.71/11,638.47 = 4,657.12/x
  3. Step 3: Cross multiply
    8,433.71x = 11,638.47 × 4,657.12
  4. Step 4: Simplify right side
    8,433.71x = 54,201,669.93
  5. Step 5: Solve for x
    x = 54,201,669.93/8,433.71
  6. Step 6: Final answer
    x = 6,426.79

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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.