Home / 15,136.20-22,682.70-11,156.40

Finding the Fourth Proportional to 15,136.20, 22,682.70 and 11,156.40

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Solution

The fourth proportional to 15,136.20, 22,682.70 and 11,156.40 is: 16,718.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,136.20 : 22,682.70 = 11,156.40 : x
  2. Step 2: Convert to fraction form
    15,136.20/22,682.70 = 11,156.40/x
  3. Step 3: Cross multiply
    15,136.20x = 22,682.70 × 11,156.40
  4. Step 4: Simplify right side
    15,136.20x = 253,057,274.28
  5. Step 5: Solve for x
    x = 253,057,274.28/15,136.20
  6. Step 6: Final answer
    x = 16,718.68

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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.