Home / 19,164.61-28,735.39-7,319.17

Finding the Fourth Proportional to 19,164.61, 28,735.39 and 7,319.17

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Solution

The fourth proportional to 19,164.61, 28,735.39 and 7,319.17 is: 10,974.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,164.61 : 28,735.39 = 7,319.17 : x
  2. Step 2: Convert to fraction form
    19,164.61/28,735.39 = 7,319.17/x
  3. Step 3: Cross multiply
    19,164.61x = 28,735.39 × 7,319.17
  4. Step 4: Simplify right side
    19,164.61x = 210,319,204.43
  5. Step 5: Solve for x
    x = 210,319,204.43/19,164.61
  6. Step 6: Final answer
    x = 10,974.35

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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.