Home / 13,811.78-19,068.13-9,104.27

Finding the Fourth Proportional to 13,811.78, 19,068.13 and 9,104.27

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Solution

The fourth proportional to 13,811.78, 19,068.13 and 9,104.27 is: 12,569.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,811.78 : 19,068.13 = 9,104.27 : x
  2. Step 2: Convert to fraction form
    13,811.78/19,068.13 = 9,104.27/x
  3. Step 3: Cross multiply
    13,811.78x = 19,068.13 × 9,104.27
  4. Step 4: Simplify right side
    13,811.78x = 173,601,268.74
  5. Step 5: Solve for x
    x = 173,601,268.74/13,811.78
  6. Step 6: Final answer
    x = 12,569.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.