Home / 16,106.13-22,236.80-13,129.11

Finding the Fourth Proportional to 16,106.13, 22,236.80 and 13,129.11

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Solution

The fourth proportional to 16,106.13, 22,236.80 and 13,129.11 is: 18,126.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,106.13 : 22,236.80 = 13,129.11 : x
  2. Step 2: Convert to fraction form
    16,106.13/22,236.80 = 13,129.11/x
  3. Step 3: Cross multiply
    16,106.13x = 22,236.80 × 13,129.11
  4. Step 4: Simplify right side
    16,106.13x = 291,949,327.60
  5. Step 5: Solve for x
    x = 291,949,327.60/16,106.13
  6. Step 6: Final answer
    x = 18,126.60

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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.