Home / 12,637.91-18,956.86-4,317.99

Finding the Fourth Proportional to 12,637.91, 18,956.86 and 4,317.99

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Solution

The fourth proportional to 12,637.91, 18,956.86 and 4,317.99 is: 6,476.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,637.91 : 18,956.86 = 4,317.99 : x
  2. Step 2: Convert to fraction form
    12,637.91/18,956.86 = 4,317.99/x
  3. Step 3: Cross multiply
    12,637.91x = 18,956.86 × 4,317.99
  4. Step 4: Simplify right side
    12,637.91x = 81,855,568.80
  5. Step 5: Solve for x
    x = 81,855,568.80/12,637.91
  6. Step 6: Final answer
    x = 6,476.99

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Similar ratio
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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.