Home / 19,851.21-27,394.70-11,467.71

Finding the Fourth Proportional to 19,851.21, 27,394.70 and 11,467.71

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Solution

The fourth proportional to 19,851.21, 27,394.70 and 11,467.71 is: 15,825.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,851.21 : 27,394.70 = 11,467.71 : x
  2. Step 2: Convert to fraction form
    19,851.21/27,394.70 = 11,467.71/x
  3. Step 3: Cross multiply
    19,851.21x = 27,394.70 × 11,467.71
  4. Step 4: Simplify right side
    19,851.21x = 314,154,417.80
  5. Step 5: Solve for x
    x = 314,154,417.80/19,851.21
  6. Step 6: Final answer
    x = 15,825.45

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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.