Home / 19,110.42-28,650.78-9,110.04

Finding the Fourth Proportional to 19,110.42, 28,650.78 and 9,110.04

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Solution

The fourth proportional to 19,110.42, 28,650.78 and 9,110.04 is: 13,657.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,110.42 : 28,650.78 = 9,110.04 : x
  2. Step 2: Convert to fraction form
    19,110.42/28,650.78 = 9,110.04/x
  3. Step 3: Cross multiply
    19,110.42x = 28,650.78 × 9,110.04
  4. Step 4: Simplify right side
    19,110.42x = 261,009,751.83
  5. Step 5: Solve for x
    x = 261,009,751.83/19,110.42
  6. Step 6: Final answer
    x = 13,657.98

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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.