Home / 11,138.20-16,707.30-11,061.40

Finding the Fourth Proportional to 11,138.20, 16,707.30 and 11,061.40

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Solution

The fourth proportional to 11,138.20, 16,707.30 and 11,061.40 is: 16,592.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,138.20 : 16,707.30 = 11,061.40 : x
  2. Step 2: Convert to fraction form
    11,138.20/16,707.30 = 11,061.40/x
  3. Step 3: Cross multiply
    11,138.20x = 16,707.30 × 11,061.40
  4. Step 4: Simplify right side
    11,138.20x = 184,806,128.22
  5. Step 5: Solve for x
    x = 184,806,128.22/11,138.20
  6. Step 6: Final answer
    x = 16,592.10

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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.