Home / 12,335.81-18,512.23-10,690.70

Finding the Fourth Proportional to 12,335.81, 18,512.23 and 10,690.70

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Solution

The fourth proportional to 12,335.81, 18,512.23 and 10,690.70 is: 16,043.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,335.81 : 18,512.23 = 10,690.70 : x
  2. Step 2: Convert to fraction form
    12,335.81/18,512.23 = 10,690.70/x
  3. Step 3: Cross multiply
    12,335.81x = 18,512.23 × 10,690.70
  4. Step 4: Simplify right side
    12,335.81x = 197,908,716.81
  5. Step 5: Solve for x
    x = 197,908,716.81/12,335.81
  6. Step 6: Final answer
    x = 16,043.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.