Home / 10,187.69-15,277.88-5,511.15

Finding the Fourth Proportional to 10,187.69, 15,277.88 and 5,511.15

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Solution

The fourth proportional to 10,187.69, 15,277.88 and 5,511.15 is: 8,264.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,187.69 : 15,277.88 = 5,511.15 : x
  2. Step 2: Convert to fraction form
    10,187.69/15,277.88 = 5,511.15/x
  3. Step 3: Cross multiply
    10,187.69x = 15,277.88 × 5,511.15
  4. Step 4: Simplify right side
    10,187.69x = 84,198,688.36
  5. Step 5: Solve for x
    x = 84,198,688.36/10,187.69
  6. Step 6: Final answer
    x = 8,264.75

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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.