Home / 19,869.06-27,427.71-13,410.10

Finding the Fourth Proportional to 19,869.06, 27,427.71 and 13,410.10

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Solution

The fourth proportional to 19,869.06, 27,427.71 and 13,410.10 is: 18,511.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,869.06 : 27,427.71 = 13,410.10 : x
  2. Step 2: Convert to fraction form
    19,869.06/27,427.71 = 13,410.10/x
  3. Step 3: Cross multiply
    19,869.06x = 27,427.71 × 13,410.10
  4. Step 4: Simplify right side
    19,869.06x = 367,808,333.87
  5. Step 5: Solve for x
    x = 367,808,333.87/19,869.06
  6. Step 6: Final answer
    x = 18,511.61

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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.