Home / 11,521.76-15,901.58-6,486.98

Finding the Fourth Proportional to 11,521.76, 15,901.58 and 6,486.98

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Solution

The fourth proportional to 11,521.76, 15,901.58 and 6,486.98 is: 8,952.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,521.76 : 15,901.58 = 6,486.98 : x
  2. Step 2: Convert to fraction form
    11,521.76/15,901.58 = 6,486.98/x
  3. Step 3: Cross multiply
    11,521.76x = 15,901.58 × 6,486.98
  4. Step 4: Simplify right side
    11,521.76x = 103,153,198.99
  5. Step 5: Solve for x
    x = 103,153,198.99/11,521.76
  6. Step 6: Final answer
    x = 8,952.90

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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.