Home / 13,976.32-19,291.42-8,315.04

Finding the Fourth Proportional to 13,976.32, 19,291.42 and 8,315.04

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Solution

The fourth proportional to 13,976.32, 19,291.42 and 8,315.04 is: 11,477.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,976.32 : 19,291.42 = 8,315.04 : x
  2. Step 2: Convert to fraction form
    13,976.32/19,291.42 = 8,315.04/x
  3. Step 3: Cross multiply
    13,976.32x = 19,291.42 × 8,315.04
  4. Step 4: Simplify right side
    13,976.32x = 160,408,928.96
  5. Step 5: Solve for x
    x = 160,408,928.96/13,976.32
  6. Step 6: Final answer
    x = 11,477.19

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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.