Home / 14,283.78-21,428.28-4,422.39

Finding the Fourth Proportional to 14,283.78, 21,428.28 and 4,422.39

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Solution

The fourth proportional to 14,283.78, 21,428.28 and 4,422.39 is: 6,634.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,283.78 : 21,428.28 = 4,422.39 : x
  2. Step 2: Convert to fraction form
    14,283.78/21,428.28 = 4,422.39/x
  3. Step 3: Cross multiply
    14,283.78x = 21,428.28 × 4,422.39
  4. Step 4: Simplify right side
    14,283.78x = 94,764,211.19
  5. Step 5: Solve for x
    x = 94,764,211.19/14,283.78
  6. Step 6: Final answer
    x = 6,634.39

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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.