Home / 14,810.80-20,439.40-8,841.68

Finding the Fourth Proportional to 14,810.80, 20,439.40 and 8,841.68

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Solution

The fourth proportional to 14,810.80, 20,439.40 and 8,841.68 is: 12,201.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,810.80 : 20,439.40 = 8,841.68 : x
  2. Step 2: Convert to fraction form
    14,810.80/20,439.40 = 8,841.68/x
  3. Step 3: Cross multiply
    14,810.80x = 20,439.40 × 8,841.68
  4. Step 4: Simplify right side
    14,810.80x = 180,718,634.19
  5. Step 5: Solve for x
    x = 180,718,634.19/14,810.80
  6. Step 6: Final answer
    x = 12,201.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.