Home / 11,228.49-15,500.57-6,511.86

Finding the Fourth Proportional to 11,228.49, 15,500.57 and 6,511.86

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Solution

The fourth proportional to 11,228.49, 15,500.57 and 6,511.86 is: 8,989.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,228.49 : 15,500.57 = 6,511.86 : x
  2. Step 2: Convert to fraction form
    11,228.49/15,500.57 = 6,511.86/x
  3. Step 3: Cross multiply
    11,228.49x = 15,500.57 × 6,511.86
  4. Step 4: Simplify right side
    11,228.49x = 100,937,509.20
  5. Step 5: Solve for x
    x = 100,937,509.20/11,228.49
  6. Step 6: Final answer
    x = 8,989.41

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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.