Home / 19,847.91-29,786.45-9,977.25

Finding the Fourth Proportional to 19,847.91, 29,786.45 and 9,977.25

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Solution

The fourth proportional to 19,847.91, 29,786.45 and 9,977.25 is: 14,973.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,847.91 : 29,786.45 = 9,977.25 : x
  2. Step 2: Convert to fraction form
    19,847.91/29,786.45 = 9,977.25/x
  3. Step 3: Cross multiply
    19,847.91x = 29,786.45 × 9,977.25
  4. Step 4: Simplify right side
    19,847.91x = 297,186,808.38
  5. Step 5: Solve for x
    x = 297,186,808.38/19,847.91
  6. Step 6: Final answer
    x = 14,973.20

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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.