Home / 12,966.21-17,893.60-7,661.01

Finding the Fourth Proportional to 12,966.21, 17,893.60 and 7,661.01

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Solution

The fourth proportional to 12,966.21, 17,893.60 and 7,661.01 is: 10,572.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,966.21 : 17,893.60 = 7,661.01 : x
  2. Step 2: Convert to fraction form
    12,966.21/17,893.60 = 7,661.01/x
  3. Step 3: Cross multiply
    12,966.21x = 17,893.60 × 7,661.01
  4. Step 4: Simplify right side
    12,966.21x = 137,083,096.48
  5. Step 5: Solve for x
    x = 137,083,096.48/12,966.21
  6. Step 6: Final answer
    x = 10,572.33

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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.