Home / 13,079.91-18,048.65-8,840.19

Finding the Fourth Proportional to 13,079.91, 18,048.65 and 8,840.19

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Solution

The fourth proportional to 13,079.91, 18,048.65 and 8,840.19 is: 12,198.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,079.91 : 18,048.65 = 8,840.19 : x
  2. Step 2: Convert to fraction form
    13,079.91/18,048.65 = 8,840.19/x
  3. Step 3: Cross multiply
    13,079.91x = 18,048.65 × 8,840.19
  4. Step 4: Simplify right side
    13,079.91x = 159,553,451.04
  5. Step 5: Solve for x
    x = 159,553,451.04/13,079.91
  6. Step 6: Final answer
    x = 12,198.36

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Double scale
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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.