Home / 18,765.51-28,149.54-6,285.03

Finding the Fourth Proportional to 18,765.51, 28,149.54 and 6,285.03

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Solution

The fourth proportional to 18,765.51, 28,149.54 and 6,285.03 is: 9,427.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,765.51 : 28,149.54 = 6,285.03 : x
  2. Step 2: Convert to fraction form
    18,765.51/28,149.54 = 6,285.03/x
  3. Step 3: Cross multiply
    18,765.51x = 28,149.54 × 6,285.03
  4. Step 4: Simplify right side
    18,765.51x = 176,920,703.39
  5. Step 5: Solve for x
    x = 176,920,703.39/18,765.51
  6. Step 6: Final answer
    x = 9,427.97

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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.