Home / 13,128.74-19,671.19-9,226.16

Finding the Fourth Proportional to 13,128.74, 19,671.19 and 9,226.16

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Solution

The fourth proportional to 13,128.74, 19,671.19 and 9,226.16 is: 13,823.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,128.74 : 19,671.19 = 9,226.16 : x
  2. Step 2: Convert to fraction form
    13,128.74/19,671.19 = 9,226.16/x
  3. Step 3: Cross multiply
    13,128.74x = 19,671.19 × 9,226.16
  4. Step 4: Simplify right side
    13,128.74x = 181,489,546.33
  5. Step 5: Solve for x
    x = 181,489,546.33/13,128.74
  6. Step 6: Final answer
    x = 13,823.84

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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.