Home / 19,555.83-27,009.32-13,257.27

Finding the Fourth Proportional to 19,555.83, 27,009.32 and 13,257.27

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Solution

The fourth proportional to 19,555.83, 27,009.32 and 13,257.27 is: 18,310.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,555.83 : 27,009.32 = 13,257.27 : x
  2. Step 2: Convert to fraction form
    19,555.83/27,009.32 = 13,257.27/x
  3. Step 3: Cross multiply
    19,555.83x = 27,009.32 × 13,257.27
  4. Step 4: Simplify right side
    19,555.83x = 358,069,880.90
  5. Step 5: Solve for x
    x = 358,069,880.90/19,555.83
  6. Step 6: Final answer
    x = 18,310.13

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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.