Home / 12,653.04-18,981.72-5,635.56

Finding the Fourth Proportional to 12,653.04, 18,981.72 and 5,635.56

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Solution

The fourth proportional to 12,653.04, 18,981.72 and 5,635.56 is: 8,454.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,653.04 : 18,981.72 = 5,635.56 : x
  2. Step 2: Convert to fraction form
    12,653.04/18,981.72 = 5,635.56/x
  3. Step 3: Cross multiply
    12,653.04x = 18,981.72 × 5,635.56
  4. Step 4: Simplify right side
    12,653.04x = 106,972,621.96
  5. Step 5: Solve for x
    x = 106,972,621.96/12,653.04
  6. Step 6: Final answer
    x = 8,454.30

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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.