Home / 12,019.03-18,004.07-9,805.75

Finding the Fourth Proportional to 12,019.03, 18,004.07 and 9,805.75

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Solution

The fourth proportional to 12,019.03, 18,004.07 and 9,805.75 is: 14,688.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,019.03 : 18,004.07 = 9,805.75 : x
  2. Step 2: Convert to fraction form
    12,019.03/18,004.07 = 9,805.75/x
  3. Step 3: Cross multiply
    12,019.03x = 18,004.07 × 9,805.75
  4. Step 4: Simplify right side
    12,019.03x = 176,543,360.37
  5. Step 5: Solve for x
    x = 176,543,360.37/12,019.03
  6. Step 6: Final answer
    x = 14,688.65

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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.