Home / 14,921.20-22,381.80-7,018.81

Finding the Fourth Proportional to 14,921.20, 22,381.80 and 7,018.81

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Solution

The fourth proportional to 14,921.20, 22,381.80 and 7,018.81 is: 10,528.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,921.20 : 22,381.80 = 7,018.81 : x
  2. Step 2: Convert to fraction form
    14,921.20/22,381.80 = 7,018.81/x
  3. Step 3: Cross multiply
    14,921.20x = 22,381.80 × 7,018.81
  4. Step 4: Simplify right side
    14,921.20x = 157,093,489.75
  5. Step 5: Solve for x
    x = 157,093,489.75/14,921.20
  6. Step 6: Final answer
    x = 10,528.21

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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.