Home / 13,613.57-18,772.49-10,776.41

Finding the Fourth Proportional to 13,613.57, 18,772.49 and 10,776.41

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Solution

The fourth proportional to 13,613.57, 18,772.49 and 10,776.41 is: 14,860.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,613.57 : 18,772.49 = 10,776.41 : x
  2. Step 2: Convert to fraction form
    13,613.57/18,772.49 = 10,776.41/x
  3. Step 3: Cross multiply
    13,613.57x = 18,772.49 × 10,776.41
  4. Step 4: Simplify right side
    13,613.57x = 202,299,995.08
  5. Step 5: Solve for x
    x = 202,299,995.08/13,613.57
  6. Step 6: Final answer
    x = 14,860.17

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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.