Home / 14,142.14-21,210.45-4,279.10

Finding the Fourth Proportional to 14,142.14, 21,210.45 and 4,279.10

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Solution

The fourth proportional to 14,142.14, 21,210.45 and 4,279.10 is: 6,417.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,142.14 : 21,210.45 = 4,279.10 : x
  2. Step 2: Convert to fraction form
    14,142.14/21,210.45 = 4,279.10/x
  3. Step 3: Cross multiply
    14,142.14x = 21,210.45 × 4,279.10
  4. Step 4: Simplify right side
    14,142.14x = 90,761,530.54
  5. Step 5: Solve for x
    x = 90,761,530.54/14,142.14
  6. Step 6: Final answer
    x = 6,417.81

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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.