Home / 14,143.27-21,206.67-4,279.90

Finding the Fourth Proportional to 14,143.27, 21,206.67 and 4,279.90

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Solution

The fourth proportional to 14,143.27, 21,206.67 and 4,279.90 is: 6,417.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,143.27 : 21,206.67 = 4,279.90 : x
  2. Step 2: Convert to fraction form
    14,143.27/21,206.67 = 4,279.90/x
  3. Step 3: Cross multiply
    14,143.27x = 21,206.67 × 4,279.90
  4. Step 4: Simplify right side
    14,143.27x = 90,762,426.93
  5. Step 5: Solve for x
    x = 90,762,426.93/14,143.27
  6. Step 6: Final answer
    x = 6,417.36

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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.