Home / 13,910.68-20,865.48-5,588.20

Finding the Fourth Proportional to 13,910.68, 20,865.48 and 5,588.20

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Solution

The fourth proportional to 13,910.68, 20,865.48 and 5,588.20 is: 8,382.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,910.68 : 20,865.48 = 5,588.20 : x
  2. Step 2: Convert to fraction form
    13,910.68/20,865.48 = 5,588.20/x
  3. Step 3: Cross multiply
    13,910.68x = 20,865.48 × 5,588.20
  4. Step 4: Simplify right side
    13,910.68x = 116,600,475.34
  5. Step 5: Solve for x
    x = 116,600,475.34/13,910.68
  6. Step 6: Final answer
    x = 8,382.08

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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.