Home / 14,476.32-19,979.16-8,188.56

Finding the Fourth Proportional to 14,476.32, 19,979.16 and 8,188.56

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Solution

The fourth proportional to 14,476.32, 19,979.16 and 8,188.56 is: 11,301.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,476.32 : 19,979.16 = 8,188.56 : x
  2. Step 2: Convert to fraction form
    14,476.32/19,979.16 = 8,188.56/x
  3. Step 3: Cross multiply
    14,476.32x = 19,979.16 × 8,188.56
  4. Step 4: Simplify right side
    14,476.32x = 163,600,550.41
  5. Step 5: Solve for x
    x = 163,600,550.41/14,476.32
  6. Step 6: Final answer
    x = 11,301.25

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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.