Home / 12,609.51-17,403.19-9,619.69

Finding the Fourth Proportional to 12,609.51, 17,403.19 and 9,619.69

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Solution

The fourth proportional to 12,609.51, 17,403.19 and 9,619.69 is: 13,276.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,609.51 : 17,403.19 = 9,619.69 : x
  2. Step 2: Convert to fraction form
    12,609.51/17,403.19 = 9,619.69/x
  3. Step 3: Cross multiply
    12,609.51x = 17,403.19 × 9,619.69
  4. Step 4: Simplify right side
    12,609.51x = 167,413,292.81
  5. Step 5: Solve for x
    x = 167,413,292.81/12,609.51
  6. Step 6: Final answer
    x = 13,276.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.