Home / 19,845.36-27,382.32-11,457

Finding the Fourth Proportional to 19,845.36, 27,382.32 and 11,457

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Solution

The fourth proportional to 19,845.36, 27,382.32 and 11,457 is: 15,808.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,845.36 : 27,382.32 = 11,457 : x
  2. Step 2: Convert to fraction form
    19,845.36/27,382.32 = 11,457/x
  3. Step 3: Cross multiply
    19,845.36x = 27,382.32 × 11,457
  4. Step 4: Simplify right side
    19,845.36x = 313,719,240.24
  5. Step 5: Solve for x
    x = 313,719,240.24/19,845.36
  6. Step 6: Final answer
    x = 15,808.19

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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.