Home / 14,189.40-21,286.35-4,830.30

Finding the Fourth Proportional to 14,189.40, 21,286.35 and 4,830.30

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Solution

The fourth proportional to 14,189.40, 21,286.35 and 4,830.30 is: 7,246.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,189.40 : 21,286.35 = 4,830.30 : x
  2. Step 2: Convert to fraction form
    14,189.40/21,286.35 = 4,830.30/x
  3. Step 3: Cross multiply
    14,189.40x = 21,286.35 × 4,830.30
  4. Step 4: Simplify right side
    14,189.40x = 102,819,456.41
  5. Step 5: Solve for x
    x = 102,819,456.41/14,189.40
  6. Step 6: Final answer
    x = 7,246.22

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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.