Home / 14,149.74-21,230.14-4,290.06

Finding the Fourth Proportional to 14,149.74, 21,230.14 and 4,290.06

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Solution

The fourth proportional to 14,149.74, 21,230.14 and 4,290.06 is: 6,436.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,149.74 : 21,230.14 = 4,290.06 : x
  2. Step 2: Convert to fraction form
    14,149.74/21,230.14 = 4,290.06/x
  3. Step 3: Cross multiply
    14,149.74x = 21,230.14 × 4,290.06
  4. Step 4: Simplify right side
    14,149.74x = 91,078,574.41
  5. Step 5: Solve for x
    x = 91,078,574.41/14,149.74
  6. Step 6: Final answer
    x = 6,436.77

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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.