Home / 13,279.04-19,908.61-8,012.81

Finding the Fourth Proportional to 13,279.04, 19,908.61 and 8,012.81

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Solution

The fourth proportional to 13,279.04, 19,908.61 and 8,012.81 is: 12,013.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,279.04 : 19,908.61 = 8,012.81 : x
  2. Step 2: Convert to fraction form
    13,279.04/19,908.61 = 8,012.81/x
  3. Step 3: Cross multiply
    13,279.04x = 19,908.61 × 8,012.81
  4. Step 4: Simplify right side
    13,279.04x = 159,523,789.72
  5. Step 5: Solve for x
    x = 159,523,789.72/13,279.04
  6. Step 6: Final answer
    x = 12,013.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.