Home / 19,860.56-29,783.64-7,377.68

Finding the Fourth Proportional to 19,860.56, 29,783.64 and 7,377.68

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Solution

The fourth proportional to 19,860.56, 29,783.64 and 7,377.68 is: 11,063.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,860.56 : 29,783.64 = 7,377.68 : x
  2. Step 2: Convert to fraction form
    19,860.56/29,783.64 = 7,377.68/x
  3. Step 3: Cross multiply
    19,860.56x = 29,783.64 × 7,377.68
  4. Step 4: Simplify right side
    19,860.56x = 219,734,165.16
  5. Step 5: Solve for x
    x = 219,734,165.16/19,860.56
  6. Step 6: Final answer
    x = 11,063.85

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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.