Home / 18,430.39-27,645.45-8,564.19

Finding the Fourth Proportional to 18,430.39, 27,645.45 and 8,564.19

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Solution

The fourth proportional to 18,430.39, 27,645.45 and 8,564.19 is: 12,846.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,430.39 : 27,645.45 = 8,564.19 : x
  2. Step 2: Convert to fraction form
    18,430.39/27,645.45 = 8,564.19/x
  3. Step 3: Cross multiply
    18,430.39x = 27,645.45 × 8,564.19
  4. Step 4: Simplify right side
    18,430.39x = 236,760,886.44
  5. Step 5: Solve for x
    x = 236,760,886.44/18,430.39
  6. Step 6: Final answer
    x = 12,846.22

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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.