Home / 14,613.20-21,911.70-6,291.80

Finding the Fourth Proportional to 14,613.20, 21,911.70 and 6,291.80

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Solution

The fourth proportional to 14,613.20, 21,911.70 and 6,291.80 is: 9,434.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,613.20 : 21,911.70 = 6,291.80 : x
  2. Step 2: Convert to fraction form
    14,613.20/21,911.70 = 6,291.80/x
  3. Step 3: Cross multiply
    14,613.20x = 21,911.70 × 6,291.80
  4. Step 4: Simplify right side
    14,613.20x = 137,864,034.06
  5. Step 5: Solve for x
    x = 137,864,034.06/14,613.20
  6. Step 6: Final answer
    x = 9,434.21

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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.