Home / 13,980.66-20,984.76-10,272.48

Finding the Fourth Proportional to 13,980.66, 20,984.76 and 10,272.48

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Solution

The fourth proportional to 13,980.66, 20,984.76 and 10,272.48 is: 15,418.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,980.66 : 20,984.76 = 10,272.48 : x
  2. Step 2: Convert to fraction form
    13,980.66/20,984.76 = 10,272.48/x
  3. Step 3: Cross multiply
    13,980.66x = 20,984.76 × 10,272.48
  4. Step 4: Simplify right side
    13,980.66x = 215,565,527.40
  5. Step 5: Solve for x
    x = 215,565,527.40/13,980.66
  6. Step 6: Final answer
    x = 15,418.84

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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.