Home / 13,497.68-18,618.77-10,508.78

Finding the Fourth Proportional to 13,497.68, 18,618.77 and 10,508.78

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Solution

The fourth proportional to 13,497.68, 18,618.77 and 10,508.78 is: 14,495.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,497.68 : 18,618.77 = 10,508.78 : x
  2. Step 2: Convert to fraction form
    13,497.68/18,618.77 = 10,508.78/x
  3. Step 3: Cross multiply
    13,497.68x = 18,618.77 × 10,508.78
  4. Step 4: Simplify right side
    13,497.68x = 195,660,490.98
  5. Step 5: Solve for x
    x = 195,660,490.98/13,497.68
  6. Step 6: Final answer
    x = 14,495.87

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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.