Home / 9,880.50-13,635.09-5,688.75

Finding the Fourth Proportional to 9,880.50, 13,635.09 and 5,688.75

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Solution

The fourth proportional to 9,880.50, 13,635.09 and 5,688.75 is: 7,850.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,880.50 : 13,635.09 = 5,688.75 : x
  2. Step 2: Convert to fraction form
    9,880.50/13,635.09 = 5,688.75/x
  3. Step 3: Cross multiply
    9,880.50x = 13,635.09 × 5,688.75
  4. Step 4: Simplify right side
    9,880.50x = 77,566,618.24
  5. Step 5: Solve for x
    x = 77,566,618.24/9,880.50
  6. Step 6: Final answer
    x = 7,850.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.