Home / 19,113.05-28,658.63-7,412.60

Finding the Fourth Proportional to 19,113.05, 28,658.63 and 7,412.60

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Solution

The fourth proportional to 19,113.05, 28,658.63 and 7,412.60 is: 11,114.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,113.05 : 28,658.63 = 7,412.60 : x
  2. Step 2: Convert to fraction form
    19,113.05/28,658.63 = 7,412.60/x
  3. Step 3: Cross multiply
    19,113.05x = 28,658.63 × 7,412.60
  4. Step 4: Simplify right side
    19,113.05x = 212,434,780.38
  5. Step 5: Solve for x
    x = 212,434,780.38/19,113.05
  6. Step 6: Final answer
    x = 11,114.65

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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.