Home / 19,785.68-27,291.36-13,336.16

Finding the Fourth Proportional to 19,785.68, 27,291.36 and 13,336.16

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Solution

The fourth proportional to 19,785.68, 27,291.36 and 13,336.16 is: 18,395.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,785.68 : 27,291.36 = 13,336.16 : x
  2. Step 2: Convert to fraction form
    19,785.68/27,291.36 = 13,336.16/x
  3. Step 3: Cross multiply
    19,785.68x = 27,291.36 × 13,336.16
  4. Step 4: Simplify right side
    19,785.68x = 363,961,943.58
  5. Step 5: Solve for x
    x = 363,961,943.58/19,785.68
  6. Step 6: Final answer
    x = 18,395.22

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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.