Home / 14,286.32-19,707.20-8,317.36

Finding the Fourth Proportional to 14,286.32, 19,707.20 and 8,317.36

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Solution

The fourth proportional to 14,286.32, 19,707.20 and 8,317.36 is: 11,473.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,286.32 : 19,707.20 = 8,317.36 : x
  2. Step 2: Convert to fraction form
    14,286.32/19,707.20 = 8,317.36/x
  3. Step 3: Cross multiply
    14,286.32x = 19,707.20 × 8,317.36
  4. Step 4: Simplify right side
    14,286.32x = 163,911,876.99
  5. Step 5: Solve for x
    x = 163,911,876.99/14,286.32
  6. Step 6: Final answer
    x = 11,473.34

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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.