Home / 19,783.63-29,679.89-6,635.66

Finding the Fourth Proportional to 19,783.63, 29,679.89 and 6,635.66

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Solution

The fourth proportional to 19,783.63, 29,679.89 and 6,635.66 is: 9,954.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,783.63 : 29,679.89 = 6,635.66 : x
  2. Step 2: Convert to fraction form
    19,783.63/29,679.89 = 6,635.66/x
  3. Step 3: Cross multiply
    19,783.63x = 29,679.89 × 6,635.66
  4. Step 4: Simplify right side
    19,783.63x = 196,945,699.90
  5. Step 5: Solve for x
    x = 196,945,699.90/19,783.63
  6. Step 6: Final answer
    x = 9,954.98

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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.