Home / 14,887.16-20,546.92-11,129.16

Finding the Fourth Proportional to 14,887.16, 20,546.92 and 11,129.16

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Solution

The fourth proportional to 14,887.16, 20,546.92 and 11,129.16 is: 15,360.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,887.16 : 20,546.92 = 11,129.16 : x
  2. Step 2: Convert to fraction form
    14,887.16/20,546.92 = 11,129.16/x
  3. Step 3: Cross multiply
    14,887.16x = 20,546.92 × 11,129.16
  4. Step 4: Simplify right side
    14,887.16x = 228,669,960.19
  5. Step 5: Solve for x
    x = 228,669,960.19/14,887.16
  6. Step 6: Final answer
    x = 15,360.21

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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.