Home / 12,136.64-16,753.73-8,160.06

Finding the Fourth Proportional to 12,136.64, 16,753.73 and 8,160.06

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Solution

The fourth proportional to 12,136.64, 16,753.73 and 8,160.06 is: 11,264.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,136.64 : 16,753.73 = 8,160.06 : x
  2. Step 2: Convert to fraction form
    12,136.64/16,753.73 = 8,160.06/x
  3. Step 3: Cross multiply
    12,136.64x = 16,753.73 × 8,160.06
  4. Step 4: Simplify right side
    12,136.64x = 136,711,442.02
  5. Step 5: Solve for x
    x = 136,711,442.02/12,136.64
  6. Step 6: Final answer
    x = 11,264.36

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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.