Home / 19,003.08-28,507.08-9,144.60

Finding the Fourth Proportional to 19,003.08, 28,507.08 and 9,144.60

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Solution

The fourth proportional to 19,003.08, 28,507.08 and 9,144.60 is: 13,718.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,003.08 : 28,507.08 = 9,144.60 : x
  2. Step 2: Convert to fraction form
    19,003.08/28,507.08 = 9,144.60/x
  3. Step 3: Cross multiply
    19,003.08x = 28,507.08 × 9,144.60
  4. Step 4: Simplify right side
    19,003.08x = 260,685,843.77
  5. Step 5: Solve for x
    x = 260,685,843.77/19,003.08
  6. Step 6: Final answer
    x = 13,718.08

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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.