Home / 13,574.43-18,725.19-8,536.81

Finding the Fourth Proportional to 13,574.43, 18,725.19 and 8,536.81

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Solution

The fourth proportional to 13,574.43, 18,725.19 and 8,536.81 is: 11,776.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,574.43 : 18,725.19 = 8,536.81 : x
  2. Step 2: Convert to fraction form
    13,574.43/18,725.19 = 8,536.81/x
  3. Step 3: Cross multiply
    13,574.43x = 18,725.19 × 8,536.81
  4. Step 4: Simplify right side
    13,574.43x = 159,853,389.24
  5. Step 5: Solve for x
    x = 159,853,389.24/13,574.43
  6. Step 6: Final answer
    x = 11,776.07

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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.