Home / 14,152.20-21,215.75-7,123.02

Finding the Fourth Proportional to 14,152.20, 21,215.75 and 7,123.02

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Solution

The fourth proportional to 14,152.20, 21,215.75 and 7,123.02 is: 10,678.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,152.20 : 21,215.75 = 7,123.02 : x
  2. Step 2: Convert to fraction form
    14,152.20/21,215.75 = 7,123.02/x
  3. Step 3: Cross multiply
    14,152.20x = 21,215.75 × 7,123.02
  4. Step 4: Simplify right side
    14,152.20x = 151,120,175.95
  5. Step 5: Solve for x
    x = 151,120,175.95/14,152.20
  6. Step 6: Final answer
    x = 10,678.21

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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.