Home / 19,125.72-28,677.48-7,425.28

Finding the Fourth Proportional to 19,125.72, 28,677.48 and 7,425.28

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Solution

The fourth proportional to 19,125.72, 28,677.48 and 7,425.28 is: 11,133.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,125.72 : 28,677.48 = 7,425.28 : x
  2. Step 2: Convert to fraction form
    19,125.72/28,677.48 = 7,425.28/x
  3. Step 3: Cross multiply
    19,125.72x = 28,677.48 × 7,425.28
  4. Step 4: Simplify right side
    19,125.72x = 212,938,318.69
  5. Step 5: Solve for x
    x = 212,938,318.69/19,125.72
  6. Step 6: Final answer
    x = 11,133.61

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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.