Home / 14,872.90-20,528.18-10,100.80

Finding the Fourth Proportional to 14,872.90, 20,528.18 and 10,100.80

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Solution

The fourth proportional to 14,872.90, 20,528.18 and 10,100.80 is: 13,941.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,872.90 : 20,528.18 = 10,100.80 : x
  2. Step 2: Convert to fraction form
    14,872.90/20,528.18 = 10,100.80/x
  3. Step 3: Cross multiply
    14,872.90x = 20,528.18 × 10,100.80
  4. Step 4: Simplify right side
    14,872.90x = 207,351,025.17
  5. Step 5: Solve for x
    x = 207,351,025.17/14,872.90
  6. Step 6: Final answer
    x = 13,941.53

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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.