Home / 19,690.77-27,172.68-10,738.46

Finding the Fourth Proportional to 19,690.77, 27,172.68 and 10,738.46

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Solution

The fourth proportional to 19,690.77, 27,172.68 and 10,738.46 is: 14,818.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,690.77 : 27,172.68 = 10,738.46 : x
  2. Step 2: Convert to fraction form
    19,690.77/27,172.68 = 10,738.46/x
  3. Step 3: Cross multiply
    19,690.77x = 27,172.68 × 10,738.46
  4. Step 4: Simplify right side
    19,690.77x = 291,792,601.41
  5. Step 5: Solve for x
    x = 291,792,601.41/19,690.77
  6. Step 6: Final answer
    x = 14,818.75

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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.