Home / 14,161.21-21,200.28-9,929.79

Finding the Fourth Proportional to 14,161.21, 21,200.28 and 9,929.79

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Solution

The fourth proportional to 14,161.21, 21,200.28 and 9,929.79 is: 14,865.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,161.21 : 21,200.28 = 9,929.79 : x
  2. Step 2: Convert to fraction form
    14,161.21/21,200.28 = 9,929.79/x
  3. Step 3: Cross multiply
    14,161.21x = 21,200.28 × 9,929.79
  4. Step 4: Simplify right side
    14,161.21x = 210,514,328.34
  5. Step 5: Solve for x
    x = 210,514,328.34/14,161.21
  6. Step 6: Final answer
    x = 14,865.56

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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.