Home / 19,790.94-29,686.78-9,258.12

Finding the Fourth Proportional to 19,790.94, 29,686.78 and 9,258.12

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Solution

The fourth proportional to 19,790.94, 29,686.78 and 9,258.12 is: 13,887.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,790.94 : 29,686.78 = 9,258.12 : x
  2. Step 2: Convert to fraction form
    19,790.94/29,686.78 = 9,258.12/x
  3. Step 3: Cross multiply
    19,790.94x = 29,686.78 × 9,258.12
  4. Step 4: Simplify right side
    19,790.94x = 274,843,771.65
  5. Step 5: Solve for x
    x = 274,843,771.65/19,790.94
  6. Step 6: Final answer
    x = 13,887.35

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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.