Home / 13,749.52-20,588.56-11,787.70

Finding the Fourth Proportional to 13,749.52, 20,588.56 and 11,787.70

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Solution

The fourth proportional to 13,749.52, 20,588.56 and 11,787.70 is: 17,650.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,749.52 : 20,588.56 = 11,787.70 : x
  2. Step 2: Convert to fraction form
    13,749.52/20,588.56 = 11,787.70/x
  3. Step 3: Cross multiply
    13,749.52x = 20,588.56 × 11,787.70
  4. Step 4: Simplify right side
    13,749.52x = 242,691,768.71
  5. Step 5: Solve for x
    x = 242,691,768.71/13,749.52
  6. Step 6: Final answer
    x = 17,650.93

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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.