Home / 19,761.57-27,270.59-10,809.05

Finding the Fourth Proportional to 19,761.57, 27,270.59 and 10,809.05

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Solution

The fourth proportional to 19,761.57, 27,270.59 and 10,809.05 is: 14,916.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,761.57 : 27,270.59 = 10,809.05 : x
  2. Step 2: Convert to fraction form
    19,761.57/27,270.59 = 10,809.05/x
  3. Step 3: Cross multiply
    19,761.57x = 27,270.59 × 10,809.05
  4. Step 4: Simplify right side
    19,761.57x = 294,768,980.44
  5. Step 5: Solve for x
    x = 294,768,980.44/19,761.57
  6. Step 6: Final answer
    x = 14,916.27

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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.