Home / 13,842.06-19,105.11-8,805.30

Finding the Fourth Proportional to 13,842.06, 19,105.11 and 8,805.30

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Solution

The fourth proportional to 13,842.06, 19,105.11 and 8,805.30 is: 12,153.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,842.06 : 19,105.11 = 8,805.30 : x
  2. Step 2: Convert to fraction form
    13,842.06/19,105.11 = 8,805.30/x
  3. Step 3: Cross multiply
    13,842.06x = 19,105.11 × 8,805.30
  4. Step 4: Simplify right side
    13,842.06x = 168,226,225.08
  5. Step 5: Solve for x
    x = 168,226,225.08/13,842.06
  6. Step 6: Final answer
    x = 12,153.27

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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.