Home / 13,588.12-20,381.08-4,227.76

Finding the Fourth Proportional to 13,588.12, 20,381.08 and 4,227.76

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Solution

The fourth proportional to 13,588.12, 20,381.08 and 4,227.76 is: 6,341.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,588.12 : 20,381.08 = 4,227.76 : x
  2. Step 2: Convert to fraction form
    13,588.12/20,381.08 = 4,227.76/x
  3. Step 3: Cross multiply
    13,588.12x = 20,381.08 × 4,227.76
  4. Step 4: Simplify right side
    13,588.12x = 86,166,314.78
  5. Step 5: Solve for x
    x = 86,166,314.78/13,588.12
  6. Step 6: Final answer
    x = 6,341.30

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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.