Home / 13,574.28-18,741.66-8,477.58

Finding the Fourth Proportional to 13,574.28, 18,741.66 and 8,477.58

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Solution

The fourth proportional to 13,574.28, 18,741.66 and 8,477.58 is: 11,704.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,574.28 : 18,741.66 = 8,477.58 : x
  2. Step 2: Convert to fraction form
    13,574.28/18,741.66 = 8,477.58/x
  3. Step 3: Cross multiply
    13,574.28x = 18,741.66 × 8,477.58
  4. Step 4: Simplify right side
    13,574.28x = 158,883,921.98
  5. Step 5: Solve for x
    x = 158,883,921.98/13,574.28
  6. Step 6: Final answer
    x = 11,704.78

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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.