Home / 14,172.15-21,245.10-6,270.47

Finding the Fourth Proportional to 14,172.15, 21,245.10 and 6,270.47

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Solution

The fourth proportional to 14,172.15, 21,245.10 and 6,270.47 is: 9,399.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,172.15 : 21,245.10 = 6,270.47 : x
  2. Step 2: Convert to fraction form
    14,172.15/21,245.10 = 6,270.47/x
  3. Step 3: Cross multiply
    14,172.15x = 21,245.10 × 6,270.47
  4. Step 4: Simplify right side
    14,172.15x = 133,216,815.31
  5. Step 5: Solve for x
    x = 133,216,815.31/14,172.15
  6. Step 6: Final answer
    x = 9,399.90

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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.