Home / 14,149.84-21,204.64-10,422.76

Finding the Fourth Proportional to 14,149.84, 21,204.64 and 10,422.76

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Solution

The fourth proportional to 14,149.84, 21,204.64 and 10,422.76 is: 15,619.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,149.84 : 21,204.64 = 10,422.76 : x
  2. Step 2: Convert to fraction form
    14,149.84/21,204.64 = 10,422.76/x
  3. Step 3: Cross multiply
    14,149.84x = 21,204.64 × 10,422.76
  4. Step 4: Simplify right side
    14,149.84x = 221,010,873.61
  5. Step 5: Solve for x
    x = 221,010,873.61/14,149.84
  6. Step 6: Final answer
    x = 15,619.32

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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.