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Finding the Fourth Proportional to 19,008.05, 28,513.67 and 4,968.05

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Solution

The fourth proportional to 19,008.05, 28,513.67 and 4,968.05 is: 7,452.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,008.05 : 28,513.67 = 4,968.05 : x
  2. Step 2: Convert to fraction form
    19,008.05/28,513.67 = 4,968.05/x
  3. Step 3: Cross multiply
    19,008.05x = 28,513.67 × 4,968.05
  4. Step 4: Simplify right side
    19,008.05x = 141,657,170.83
  5. Step 5: Solve for x
    x = 141,657,170.83/19,008.05
  6. Step 6: Final answer
    x = 7,452.49

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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.