Home / 13,119.06-18,082.66-9,285.74

Finding the Fourth Proportional to 13,119.06, 18,082.66 and 9,285.74

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Solution

The fourth proportional to 13,119.06, 18,082.66 and 9,285.74 is: 12,799.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,119.06 : 18,082.66 = 9,285.74 : x
  2. Step 2: Convert to fraction form
    13,119.06/18,082.66 = 9,285.74/x
  3. Step 3: Cross multiply
    13,119.06x = 18,082.66 × 9,285.74
  4. Step 4: Simplify right side
    13,119.06x = 167,910,879.27
  5. Step 5: Solve for x
    x = 167,910,879.27/13,119.06
  6. Step 6: Final answer
    x = 12,799.00

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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.