Home / 10,813.75-16,220.63-4,657.75

Finding the Fourth Proportional to 10,813.75, 16,220.63 and 4,657.75

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Solution

The fourth proportional to 10,813.75, 16,220.63 and 4,657.75 is: 6,986.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,813.75 : 16,220.63 = 4,657.75 : x
  2. Step 2: Convert to fraction form
    10,813.75/16,220.63 = 4,657.75/x
  3. Step 3: Cross multiply
    10,813.75x = 16,220.63 × 4,657.75
  4. Step 4: Simplify right side
    10,813.75x = 75,551,639.38
  5. Step 5: Solve for x
    x = 75,551,639.38/10,813.75
  6. Step 6: Final answer
    x = 6,986.63

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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.