Home / 14,631.55-21,945.03-4,770.78

Finding the Fourth Proportional to 14,631.55, 21,945.03 and 4,770.78

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Solution

The fourth proportional to 14,631.55, 21,945.03 and 4,770.78 is: 7,155.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,631.55 : 21,945.03 = 4,770.78 : x
  2. Step 2: Convert to fraction form
    14,631.55/21,945.03 = 4,770.78/x
  3. Step 3: Cross multiply
    14,631.55x = 21,945.03 × 4,770.78
  4. Step 4: Simplify right side
    14,631.55x = 104,694,810.04
  5. Step 5: Solve for x
    x = 104,694,810.04/14,631.55
  6. Step 6: Final answer
    x = 7,155.42

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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.