Home / 14,421.89-21,622.61-6,412.28

Finding the Fourth Proportional to 14,421.89, 21,622.61 and 6,412.28

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Solution

The fourth proportional to 14,421.89, 21,622.61 and 6,412.28 is: 9,613.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,421.89 : 21,622.61 = 6,412.28 : x
  2. Step 2: Convert to fraction form
    14,421.89/21,622.61 = 6,412.28/x
  3. Step 3: Cross multiply
    14,421.89x = 21,622.61 × 6,412.28
  4. Step 4: Simplify right side
    14,421.89x = 138,650,137.57
  5. Step 5: Solve for x
    x = 138,650,137.57/14,421.89
  6. Step 6: Final answer
    x = 9,613.87

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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.