Home / 17,815.54-26,667.42-11,880.76

Finding the Fourth Proportional to 17,815.54, 26,667.42 and 11,880.76

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Solution

The fourth proportional to 17,815.54, 26,667.42 and 11,880.76 is: 17,783.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,815.54 : 26,667.42 = 11,880.76 : x
  2. Step 2: Convert to fraction form
    17,815.54/26,667.42 = 11,880.76/x
  3. Step 3: Cross multiply
    17,815.54x = 26,667.42 × 11,880.76
  4. Step 4: Simplify right side
    17,815.54x = 316,829,216.84
  5. Step 5: Solve for x
    x = 316,829,216.84/17,815.54
  6. Step 6: Final answer
    x = 17,783.87

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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.