Home / 14,213.80-21,320.70-10,277.20

Finding the Fourth Proportional to 14,213.80, 21,320.70 and 10,277.20

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Solution

The fourth proportional to 14,213.80, 21,320.70 and 10,277.20 is: 15,415.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,213.80 : 21,320.70 = 10,277.20 : x
  2. Step 2: Convert to fraction form
    14,213.80/21,320.70 = 10,277.20/x
  3. Step 3: Cross multiply
    14,213.80x = 21,320.70 × 10,277.20
  4. Step 4: Simplify right side
    14,213.80x = 219,117,098.04
  5. Step 5: Solve for x
    x = 219,117,098.04/14,213.80
  6. Step 6: Final answer
    x = 15,415.80

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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.