Home / 12,561.08-18,804.97-9,412.48

Finding the Fourth Proportional to 12,561.08, 18,804.97 and 9,412.48

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Solution

The fourth proportional to 12,561.08, 18,804.97 and 9,412.48 is: 14,091.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,561.08 : 18,804.97 = 9,412.48 : x
  2. Step 2: Convert to fraction form
    12,561.08/18,804.97 = 9,412.48/x
  3. Step 3: Cross multiply
    12,561.08x = 18,804.97 × 9,412.48
  4. Step 4: Simplify right side
    12,561.08x = 177,001,368.78
  5. Step 5: Solve for x
    x = 177,001,368.78/12,561.08
  6. Step 6: Final answer
    x = 14,091.25

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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.