Home / 16,378.64-22,601.76-9,664.55

Finding the Fourth Proportional to 16,378.64, 22,601.76 and 9,664.55

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Solution

The fourth proportional to 16,378.64, 22,601.76 and 9,664.55 is: 13,336.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,378.64 : 22,601.76 = 9,664.55 : x
  2. Step 2: Convert to fraction form
    16,378.64/22,601.76 = 9,664.55/x
  3. Step 3: Cross multiply
    16,378.64x = 22,601.76 × 9,664.55
  4. Step 4: Simplify right side
    16,378.64x = 218,435,839.61
  5. Step 5: Solve for x
    x = 218,435,839.61/16,378.64
  6. Step 6: Final answer
    x = 13,336.63

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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.