Home / 13,588.02-20,381.04-4,227.78

Finding the Fourth Proportional to 13,588.02, 20,381.04 and 4,227.78

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Solution

The fourth proportional to 13,588.02, 20,381.04 and 4,227.78 is: 6,341.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,588.02 : 20,381.04 = 4,227.78 : x
  2. Step 2: Convert to fraction form
    13,588.02/20,381.04 = 4,227.78/x
  3. Step 3: Cross multiply
    13,588.02x = 20,381.04 × 4,227.78
  4. Step 4: Simplify right side
    13,588.02x = 86,166,553.29
  5. Step 5: Solve for x
    x = 86,166,553.29/13,588.02
  6. Step 6: Final answer
    x = 6,341.36

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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.