Home / 13,376.98-18,479.45-10,684.66

Finding the Fourth Proportional to 13,376.98, 18,479.45 and 10,684.66

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Solution

The fourth proportional to 13,376.98, 18,479.45 and 10,684.66 is: 14,760.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,376.98 : 18,479.45 = 10,684.66 : x
  2. Step 2: Convert to fraction form
    13,376.98/18,479.45 = 10,684.66/x
  3. Step 3: Cross multiply
    13,376.98x = 18,479.45 × 10,684.66
  4. Step 4: Simplify right side
    13,376.98x = 197,446,640.24
  5. Step 5: Solve for x
    x = 197,446,640.24/13,376.98
  6. Step 6: Final answer
    x = 14,760.18

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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.