Home / 14,982.80-20,684.04-10,945.10

Finding the Fourth Proportional to 14,982.80, 20,684.04 and 10,945.10

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Solution

The fourth proportional to 14,982.80, 20,684.04 and 10,945.10 is: 15,109.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,982.80 : 20,684.04 = 10,945.10 : x
  2. Step 2: Convert to fraction form
    14,982.80/20,684.04 = 10,945.10/x
  3. Step 3: Cross multiply
    14,982.80x = 20,684.04 × 10,945.10
  4. Step 4: Simplify right side
    14,982.80x = 226,388,762.26
  5. Step 5: Solve for x
    x = 226,388,762.26/14,982.80
  6. Step 6: Final answer
    x = 15,109.91

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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.