Home / 13,530.27-18,673.95-8,495.21

Finding the Fourth Proportional to 13,530.27, 18,673.95 and 8,495.21

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Solution

The fourth proportional to 13,530.27, 18,673.95 and 8,495.21 is: 11,724.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,530.27 : 18,673.95 = 8,495.21 : x
  2. Step 2: Convert to fraction form
    13,530.27/18,673.95 = 8,495.21/x
  3. Step 3: Cross multiply
    13,530.27x = 18,673.95 × 8,495.21
  4. Step 4: Simplify right side
    13,530.27x = 158,639,126.78
  5. Step 5: Solve for x
    x = 158,639,126.78/13,530.27
  6. Step 6: Final answer
    x = 11,724.76

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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.