Home / 10,813.60-16,211.40-4,578.40

Finding the Fourth Proportional to 10,813.60, 16,211.40 and 4,578.40

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Solution

The fourth proportional to 10,813.60, 16,211.40 and 4,578.40 is: 6,863.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,813.60 : 16,211.40 = 4,578.40 : x
  2. Step 2: Convert to fraction form
    10,813.60/16,211.40 = 4,578.40/x
  3. Step 3: Cross multiply
    10,813.60x = 16,211.40 × 4,578.40
  4. Step 4: Simplify right side
    10,813.60x = 74,222,273.76
  5. Step 5: Solve for x
    x = 74,222,273.76/10,813.60
  6. Step 6: Final answer
    x = 6,863.79

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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.