Home / 19,761.68-27,269.64-10,808.72

Finding the Fourth Proportional to 19,761.68, 27,269.64 and 10,808.72

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Solution

The fourth proportional to 19,761.68, 27,269.64 and 10,808.72 is: 14,915.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,761.68 : 27,269.64 = 10,808.72 : x
  2. Step 2: Convert to fraction form
    19,761.68/27,269.64 = 10,808.72/x
  3. Step 3: Cross multiply
    19,761.68x = 27,269.64 × 10,808.72
  4. Step 4: Simplify right side
    19,761.68x = 294,749,903.26
  5. Step 5: Solve for x
    x = 294,749,903.26/19,761.68
  6. Step 6: Final answer
    x = 14,915.22

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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.