Home / 15,136.20-22,655.70-11,831.40

Finding the Fourth Proportional to 15,136.20, 22,655.70 and 11,831.40

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Solution

The fourth proportional to 15,136.20, 22,655.70 and 11,831.40 is: 17,709.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,136.20 : 22,655.70 = 11,831.40 : x
  2. Step 2: Convert to fraction form
    15,136.20/22,655.70 = 11,831.40/x
  3. Step 3: Cross multiply
    15,136.20x = 22,655.70 × 11,831.40
  4. Step 4: Simplify right side
    15,136.20x = 268,048,648.98
  5. Step 5: Solve for x
    x = 268,048,648.98/15,136.20
  6. Step 6: Final answer
    x = 17,709.11

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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.