Home / 13,491.23-18,630.74-12,754.94

Finding the Fourth Proportional to 13,491.23, 18,630.74 and 12,754.94

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Solution

The fourth proportional to 13,491.23, 18,630.74 and 12,754.94 is: 17,613.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,491.23 : 18,630.74 = 12,754.94 : x
  2. Step 2: Convert to fraction form
    13,491.23/18,630.74 = 12,754.94/x
  3. Step 3: Cross multiply
    13,491.23x = 18,630.74 × 12,754.94
  4. Step 4: Simplify right side
    13,491.23x = 237,633,953.66
  5. Step 5: Solve for x
    x = 237,633,953.66/13,491.23
  6. Step 6: Final answer
    x = 17,613.95

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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.