Home / 14,207.91-19,615.32-12,631.65

Finding the Fourth Proportional to 14,207.91, 19,615.32 and 12,631.65

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Solution

The fourth proportional to 14,207.91, 19,615.32 and 12,631.65 is: 17,439.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,207.91 : 19,615.32 = 12,631.65 : x
  2. Step 2: Convert to fraction form
    14,207.91/19,615.32 = 12,631.65/x
  3. Step 3: Cross multiply
    14,207.91x = 19,615.32 × 12,631.65
  4. Step 4: Simplify right side
    14,207.91x = 247,773,856.88
  5. Step 5: Solve for x
    x = 247,773,856.88/14,207.91
  6. Step 6: Final answer
    x = 17,439.15

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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.