Home / 14,962.40-20,640.48-10,251.20

Finding the Fourth Proportional to 14,962.40, 20,640.48 and 10,251.20

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Solution

The fourth proportional to 14,962.40, 20,640.48 and 10,251.20 is: 14,141.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,962.40 : 20,640.48 = 10,251.20 : x
  2. Step 2: Convert to fraction form
    14,962.40/20,640.48 = 10,251.20/x
  3. Step 3: Cross multiply
    14,962.40x = 20,640.48 × 10,251.20
  4. Step 4: Simplify right side
    14,962.40x = 211,589,688.58
  5. Step 5: Solve for x
    x = 211,589,688.58/14,962.40
  6. Step 6: Final answer
    x = 14,141.43

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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.