Home / 11,403.60-15,738.90-11,103.84

Finding the Fourth Proportional to 11,403.60, 15,738.90 and 11,103.84

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Solution

The fourth proportional to 11,403.60, 15,738.90 and 11,103.84 is: 15,325.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,403.60 : 15,738.90 = 11,103.84 : x
  2. Step 2: Convert to fraction form
    11,403.60/15,738.90 = 11,103.84/x
  3. Step 3: Cross multiply
    11,403.60x = 15,738.90 × 11,103.84
  4. Step 4: Simplify right side
    11,403.60x = 174,762,227.38
  5. Step 5: Solve for x
    x = 174,762,227.38/11,403.60
  6. Step 6: Final answer
    x = 15,325.18

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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.