Home / 10,422.84-15,639.39-4,876.56

Finding the Fourth Proportional to 10,422.84, 15,639.39 and 4,876.56

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Solution

The fourth proportional to 10,422.84, 15,639.39 and 4,876.56 is: 7,317.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,422.84 : 15,639.39 = 4,876.56 : x
  2. Step 2: Convert to fraction form
    10,422.84/15,639.39 = 4,876.56/x
  3. Step 3: Cross multiply
    10,422.84x = 15,639.39 × 4,876.56
  4. Step 4: Simplify right side
    10,422.84x = 76,266,423.70
  5. Step 5: Solve for x
    x = 76,266,423.70/10,422.84
  6. Step 6: Final answer
    x = 7,317.24

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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.