Home / 14,148.06-21,225.42-4,286.76

Finding the Fourth Proportional to 14,148.06, 21,225.42 and 4,286.76

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Solution

The fourth proportional to 14,148.06, 21,225.42 and 4,286.76 is: 6,431.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,148.06 : 21,225.42 = 4,286.76 : x
  2. Step 2: Convert to fraction form
    14,148.06/21,225.42 = 4,286.76/x
  3. Step 3: Cross multiply
    14,148.06x = 21,225.42 × 4,286.76
  4. Step 4: Simplify right side
    14,148.06x = 90,988,281.44
  5. Step 5: Solve for x
    x = 90,988,281.44/14,148.06
  6. Step 6: Final answer
    x = 6,431.15

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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.