Home / 14,153.28-21,237.28-7,909.44

Finding the Fourth Proportional to 14,153.28, 21,237.28 and 7,909.44

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Solution

The fourth proportional to 14,153.28, 21,237.28 and 7,909.44 is: 11,868.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,153.28 : 21,237.28 = 7,909.44 : x
  2. Step 2: Convert to fraction form
    14,153.28/21,237.28 = 7,909.44/x
  3. Step 3: Cross multiply
    14,153.28x = 21,237.28 × 7,909.44
  4. Step 4: Simplify right side
    14,153.28x = 167,974,991.92
  5. Step 5: Solve for x
    x = 167,974,991.92/14,153.28
  6. Step 6: Final answer
    x = 11,868.27

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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.