Home / 13,588.19-20,385.18-4,227.98

Finding the Fourth Proportional to 13,588.19, 20,385.18 and 4,227.98

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Solution

The fourth proportional to 13,588.19, 20,385.18 and 4,227.98 is: 6,342.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,588.19 : 20,385.18 = 4,227.98 : x
  2. Step 2: Convert to fraction form
    13,588.19/20,385.18 = 4,227.98/x
  3. Step 3: Cross multiply
    13,588.19x = 20,385.18 × 4,227.98
  4. Step 4: Simplify right side
    13,588.19x = 86,188,133.34
  5. Step 5: Solve for x
    x = 86,188,133.34/13,588.19
  6. Step 6: Final answer
    x = 6,342.87

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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.