Home / 19,098.97-28,655.13-7,420.39

Finding the Fourth Proportional to 19,098.97, 28,655.13 and 7,420.39

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Solution

The fourth proportional to 19,098.97, 28,655.13 and 7,420.39 is: 11,133.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,098.97 : 28,655.13 = 7,420.39 : x
  2. Step 2: Convert to fraction form
    19,098.97/28,655.13 = 7,420.39/x
  3. Step 3: Cross multiply
    19,098.97x = 28,655.13 × 7,420.39
  4. Step 4: Simplify right side
    19,098.97x = 212,632,196.29
  5. Step 5: Solve for x
    x = 212,632,196.29/19,098.97
  6. Step 6: Final answer
    x = 11,133.18

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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.