Home / 12,386.86-18,564.09-10,736.62

Finding the Fourth Proportional to 12,386.86, 18,564.09 and 10,736.62

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Solution

The fourth proportional to 12,386.86, 18,564.09 and 10,736.62 is: 16,090.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,386.86 : 18,564.09 = 10,736.62 : x
  2. Step 2: Convert to fraction form
    12,386.86/18,564.09 = 10,736.62/x
  3. Step 3: Cross multiply
    12,386.86x = 18,564.09 × 10,736.62
  4. Step 4: Simplify right side
    12,386.86x = 199,315,579.98
  5. Step 5: Solve for x
    x = 199,315,579.98/12,386.86
  6. Step 6: Final answer
    x = 16,090.89

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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.