Home / 19,680.87-29,523.82-7,206.77

Finding the Fourth Proportional to 19,680.87, 29,523.82 and 7,206.77

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Solution

The fourth proportional to 19,680.87, 29,523.82 and 7,206.77 is: 10,811.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,680.87 : 29,523.82 = 7,206.77 : x
  2. Step 2: Convert to fraction form
    19,680.87/29,523.82 = 7,206.77/x
  3. Step 3: Cross multiply
    19,680.87x = 29,523.82 × 7,206.77
  4. Step 4: Simplify right side
    19,680.87x = 212,771,429.30
  5. Step 5: Solve for x
    x = 212,771,429.30/19,680.87
  6. Step 6: Final answer
    x = 10,811.08

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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.