Home / 14,686.72-20,260.96-10,221.12

Finding the Fourth Proportional to 14,686.72, 20,260.96 and 10,221.12

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Solution

The fourth proportional to 14,686.72, 20,260.96 and 10,221.12 is: 14,100.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,686.72 : 20,260.96 = 10,221.12 : x
  2. Step 2: Convert to fraction form
    14,686.72/20,260.96 = 10,221.12/x
  3. Step 3: Cross multiply
    14,686.72x = 20,260.96 × 10,221.12
  4. Step 4: Simplify right side
    14,686.72x = 207,089,703.48
  5. Step 5: Solve for x
    x = 207,089,703.48/14,686.72
  6. Step 6: Final answer
    x = 14,100.47

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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.