Home / 13,671.92-18,868.14-10,308.80

Finding the Fourth Proportional to 13,671.92, 18,868.14 and 10,308.80

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Solution

The fourth proportional to 13,671.92, 18,868.14 and 10,308.80 is: 14,226.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,671.92 : 18,868.14 = 10,308.80 : x
  2. Step 2: Convert to fraction form
    13,671.92/18,868.14 = 10,308.80/x
  3. Step 3: Cross multiply
    13,671.92x = 18,868.14 × 10,308.80
  4. Step 4: Simplify right side
    13,671.92x = 194,507,881.63
  5. Step 5: Solve for x
    x = 194,507,881.63/13,671.92
  6. Step 6: Final answer
    x = 14,226.82

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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.