Home / 8,639.66-11,923.74-4,862.96

Finding the Fourth Proportional to 8,639.66, 11,923.74 and 4,862.96

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Solution

The fourth proportional to 8,639.66, 11,923.74 and 4,862.96 is: 6,711.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,639.66 : 11,923.74 = 4,862.96 : x
  2. Step 2: Convert to fraction form
    8,639.66/11,923.74 = 4,862.96/x
  3. Step 3: Cross multiply
    8,639.66x = 11,923.74 × 4,862.96
  4. Step 4: Simplify right side
    8,639.66x = 57,984,670.67
  5. Step 5: Solve for x
    x = 57,984,670.67/8,639.66
  6. Step 6: Final answer
    x = 6,711.45

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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.