Home / 14,279.94-19,706.22-8,315.10

Finding the Fourth Proportional to 14,279.94, 19,706.22 and 8,315.10

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Solution

The fourth proportional to 14,279.94, 19,706.22 and 8,315.10 is: 11,474.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,279.94 : 19,706.22 = 8,315.10 : x
  2. Step 2: Convert to fraction form
    14,279.94/19,706.22 = 8,315.10/x
  3. Step 3: Cross multiply
    14,279.94x = 19,706.22 × 8,315.10
  4. Step 4: Simplify right side
    14,279.94x = 163,859,189.92
  5. Step 5: Solve for x
    x = 163,859,189.92/14,279.94
  6. Step 6: Final answer
    x = 11,474.78

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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.