Home / 13,511.76-20,267.91-7,276.92

Finding the Fourth Proportional to 13,511.76, 20,267.91 and 7,276.92

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Solution

The fourth proportional to 13,511.76, 20,267.91 and 7,276.92 is: 10,915.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,511.76 : 20,267.91 = 7,276.92 : x
  2. Step 2: Convert to fraction form
    13,511.76/20,267.91 = 7,276.92/x
  3. Step 3: Cross multiply
    13,511.76x = 20,267.91 × 7,276.92
  4. Step 4: Simplify right side
    13,511.76x = 147,487,959.64
  5. Step 5: Solve for x
    x = 147,487,959.64/13,511.76
  6. Step 6: Final answer
    x = 10,915.53

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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.