Home / 16,931.96-23,367.22-9,378.60

Finding the Fourth Proportional to 16,931.96, 23,367.22 and 9,378.60

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Solution

The fourth proportional to 16,931.96, 23,367.22 and 9,378.60 is: 12,943.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,931.96 : 23,367.22 = 9,378.60 : x
  2. Step 2: Convert to fraction form
    16,931.96/23,367.22 = 9,378.60/x
  3. Step 3: Cross multiply
    16,931.96x = 23,367.22 × 9,378.60
  4. Step 4: Simplify right side
    16,931.96x = 219,151,809.49
  5. Step 5: Solve for x
    x = 219,151,809.49/16,931.96
  6. Step 6: Final answer
    x = 12,943.09

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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.