Home / 13,892.40-20,840.42-4,529.13

Finding the Fourth Proportional to 13,892.40, 20,840.42 and 4,529.13

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Solution

The fourth proportional to 13,892.40, 20,840.42 and 4,529.13 is: 6,794.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,892.40 : 20,840.42 = 4,529.13 : x
  2. Step 2: Convert to fraction form
    13,892.40/20,840.42 = 4,529.13/x
  3. Step 3: Cross multiply
    13,892.40x = 20,840.42 × 4,529.13
  4. Step 4: Simplify right side
    13,892.40x = 94,388,948.79
  5. Step 5: Solve for x
    x = 94,388,948.79/13,892.40
  6. Step 6: Final answer
    x = 6,794.29

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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.