Home / 13,879.65-19,156.91-8,842.67

Finding the Fourth Proportional to 13,879.65, 19,156.91 and 8,842.67

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Solution

The fourth proportional to 13,879.65, 19,156.91 and 8,842.67 is: 12,204.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,879.65 : 19,156.91 = 8,842.67 : x
  2. Step 2: Convert to fraction form
    13,879.65/19,156.91 = 8,842.67/x
  3. Step 3: Cross multiply
    13,879.65x = 19,156.91 × 8,842.67
  4. Step 4: Simplify right side
    13,879.65x = 169,398,165.19
  5. Step 5: Solve for x
    x = 169,398,165.19/13,879.65
  6. Step 6: Final answer
    x = 12,204.78

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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.