Home / 14,130.72-21,157.20-10,657.44

Finding the Fourth Proportional to 14,130.72, 21,157.20 and 10,657.44

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Solution

The fourth proportional to 14,130.72, 21,157.20 and 10,657.44 is: 15,956.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,130.72 : 21,157.20 = 10,657.44 : x
  2. Step 2: Convert to fraction form
    14,130.72/21,157.20 = 10,657.44/x
  3. Step 3: Cross multiply
    14,130.72x = 21,157.20 × 10,657.44
  4. Step 4: Simplify right side
    14,130.72x = 225,481,589.57
  5. Step 5: Solve for x
    x = 225,481,589.57/14,130.72
  6. Step 6: Final answer
    x = 15,956.84

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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.