Home / 19,089.46-28,642.72-7,403.60

Finding the Fourth Proportional to 19,089.46, 28,642.72 and 7,403.60

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Solution

The fourth proportional to 19,089.46, 28,642.72 and 7,403.60 is: 11,108.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,089.46 : 28,642.72 = 7,403.60 : x
  2. Step 2: Convert to fraction form
    19,089.46/28,642.72 = 7,403.60/x
  3. Step 3: Cross multiply
    19,089.46x = 28,642.72 × 7,403.60
  4. Step 4: Simplify right side
    19,089.46x = 212,059,241.79
  5. Step 5: Solve for x
    x = 212,059,241.79/19,089.46
  6. Step 6: Final answer
    x = 11,108.71

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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.