Home / 14,146.95-21,220.61-7,226.31

Finding the Fourth Proportional to 14,146.95, 21,220.61 and 7,226.31

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Solution

The fourth proportional to 14,146.95, 21,220.61 and 7,226.31 is: 10,839.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,146.95 : 21,220.61 = 7,226.31 : x
  2. Step 2: Convert to fraction form
    14,146.95/21,220.61 = 7,226.31/x
  3. Step 3: Cross multiply
    14,146.95x = 21,220.61 × 7,226.31
  4. Step 4: Simplify right side
    14,146.95x = 153,346,670.12
  5. Step 5: Solve for x
    x = 153,346,670.12/14,146.95
  6. Step 6: Final answer
    x = 10,839.56

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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.