Home / 19,188.54-28,763.37-9,319.50

Finding the Fourth Proportional to 19,188.54, 28,763.37 and 9,319.50

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Solution

The fourth proportional to 19,188.54, 28,763.37 and 9,319.50 is: 13,969.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,188.54 : 28,763.37 = 9,319.50 : x
  2. Step 2: Convert to fraction form
    19,188.54/28,763.37 = 9,319.50/x
  3. Step 3: Cross multiply
    19,188.54x = 28,763.37 × 9,319.50
  4. Step 4: Simplify right side
    19,188.54x = 268,060,226.72
  5. Step 5: Solve for x
    x = 268,060,226.72/19,188.54
  6. Step 6: Final answer
    x = 13,969.81

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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.