Home / 13,931.62-20,950.47-11,126.74

Finding the Fourth Proportional to 13,931.62, 20,950.47 and 11,126.74

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Solution

The fourth proportional to 13,931.62, 20,950.47 and 11,126.74 is: 16,732.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,931.62 : 20,950.47 = 11,126.74 : x
  2. Step 2: Convert to fraction form
    13,931.62/20,950.47 = 11,126.74/x
  3. Step 3: Cross multiply
    13,931.62x = 20,950.47 × 11,126.74
  4. Step 4: Simplify right side
    13,931.62x = 233,110,432.57
  5. Step 5: Solve for x
    x = 233,110,432.57/13,931.62
  6. Step 6: Final answer
    x = 16,732.47

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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.