Home / 12,717.52-19,076.16-4,920.88

Finding the Fourth Proportional to 12,717.52, 19,076.16 and 4,920.88

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Solution

The fourth proportional to 12,717.52, 19,076.16 and 4,920.88 is: 7,381.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,717.52 : 19,076.16 = 4,920.88 : x
  2. Step 2: Convert to fraction form
    12,717.52/19,076.16 = 4,920.88/x
  3. Step 3: Cross multiply
    12,717.52x = 19,076.16 × 4,920.88
  4. Step 4: Simplify right side
    12,717.52x = 93,871,494.22
  5. Step 5: Solve for x
    x = 93,871,494.22/12,717.52
  6. Step 6: Final answer
    x = 7,381.27

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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.