Home / 19,760.39-27,271.89-11,265.60

Finding the Fourth Proportional to 19,760.39, 27,271.89 and 11,265.60

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Solution

The fourth proportional to 19,760.39, 27,271.89 and 11,265.60 is: 15,547.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,760.39 : 27,271.89 = 11,265.60 : x
  2. Step 2: Convert to fraction form
    19,760.39/27,271.89 = 11,265.60/x
  3. Step 3: Cross multiply
    19,760.39x = 27,271.89 × 11,265.60
  4. Step 4: Simplify right side
    19,760.39x = 307,234,203.98
  5. Step 5: Solve for x
    x = 307,234,203.98/19,760.39
  6. Step 6: Final answer
    x = 15,547.99

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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.