Home / 13,199.57-18,235.19-8,673.02

Finding the Fourth Proportional to 13,199.57, 18,235.19 and 8,673.02

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Solution

The fourth proportional to 13,199.57, 18,235.19 and 8,673.02 is: 11,981.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,199.57 : 18,235.19 = 8,673.02 : x
  2. Step 2: Convert to fraction form
    13,199.57/18,235.19 = 8,673.02/x
  3. Step 3: Cross multiply
    13,199.57x = 18,235.19 × 8,673.02
  4. Step 4: Simplify right side
    13,199.57x = 158,154,167.57
  5. Step 5: Solve for x
    x = 158,154,167.57/13,199.57
  6. Step 6: Final answer
    x = 11,981.77

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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.