Home / 12,868.01-19,302.21-5,076.75

Finding the Fourth Proportional to 12,868.01, 19,302.21 and 5,076.75

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Solution

The fourth proportional to 12,868.01, 19,302.21 and 5,076.75 is: 7,615.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,868.01 : 19,302.21 = 5,076.75 : x
  2. Step 2: Convert to fraction form
    12,868.01/19,302.21 = 5,076.75/x
  3. Step 3: Cross multiply
    12,868.01x = 19,302.21 × 5,076.75
  4. Step 4: Simplify right side
    12,868.01x = 97,992,494.62
  5. Step 5: Solve for x
    x = 97,992,494.62/12,868.01
  6. Step 6: Final answer
    x = 7,615.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.