Home / 11,697.76-16,136.40-6,981.28

Finding the Fourth Proportional to 11,697.76, 16,136.40 and 6,981.28

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Solution

The fourth proportional to 11,697.76, 16,136.40 and 6,981.28 is: 9,630.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,697.76 : 16,136.40 = 6,981.28 : x
  2. Step 2: Convert to fraction form
    11,697.76/16,136.40 = 6,981.28/x
  3. Step 3: Cross multiply
    11,697.76x = 16,136.40 × 6,981.28
  4. Step 4: Simplify right side
    11,697.76x = 112,652,726.59
  5. Step 5: Solve for x
    x = 112,652,726.59/11,697.76
  6. Step 6: Final answer
    x = 9,630.28

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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.