Home / 14,612.40-21,918.60-9,421.92

Finding the Fourth Proportional to 14,612.40, 21,918.60 and 9,421.92

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Solution

The fourth proportional to 14,612.40, 21,918.60 and 9,421.92 is: 14,132.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,612.40 : 21,918.60 = 9,421.92 : x
  2. Step 2: Convert to fraction form
    14,612.40/21,918.60 = 9,421.92/x
  3. Step 3: Cross multiply
    14,612.40x = 21,918.60 × 9,421.92
  4. Step 4: Simplify right side
    14,612.40x = 206,515,295.71
  5. Step 5: Solve for x
    x = 206,515,295.71/14,612.40
  6. Step 6: Final answer
    x = 14,132.88

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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.