Home / 12,390.48-18,593.82-11,570.22

Finding the Fourth Proportional to 12,390.48, 18,593.82 and 11,570.22

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Solution

The fourth proportional to 12,390.48, 18,593.82 and 11,570.22 is: 17,362.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,390.48 : 18,593.82 = 11,570.22 : x
  2. Step 2: Convert to fraction form
    12,390.48/18,593.82 = 11,570.22/x
  3. Step 3: Cross multiply
    12,390.48x = 18,593.82 × 11,570.22
  4. Step 4: Simplify right side
    12,390.48x = 215,134,588.04
  5. Step 5: Solve for x
    x = 215,134,588.04/12,390.48
  6. Step 6: Final answer
    x = 17,362.89

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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.