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Finding the Fourth Proportional to 15,851.08, 21,873 and 9,476.40

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Solution

The fourth proportional to 15,851.08, 21,873 and 9,476.40 is: 13,076.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,851.08 : 21,873 = 9,476.40 : x
  2. Step 2: Convert to fraction form
    15,851.08/21,873 = 9,476.40/x
  3. Step 3: Cross multiply
    15,851.08x = 21,873 × 9,476.40
  4. Step 4: Simplify right side
    15,851.08x = 207,277,297.20
  5. Step 5: Solve for x
    x = 207,277,297.20/15,851.08
  6. Step 6: Final answer
    x = 13,076.54

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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.