Home / 13,416.69-20,139.61-11,346.33

Finding the Fourth Proportional to 13,416.69, 20,139.61 and 11,346.33

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Solution

The fourth proportional to 13,416.69, 20,139.61 and 11,346.33 is: 17,031.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,416.69 : 20,139.61 = 11,346.33 : x
  2. Step 2: Convert to fraction form
    13,416.69/20,139.61 = 11,346.33/x
  3. Step 3: Cross multiply
    13,416.69x = 20,139.61 × 11,346.33
  4. Step 4: Simplify right side
    13,416.69x = 228,510,532.07
  5. Step 5: Solve for x
    x = 228,510,532.07/13,416.69
  6. Step 6: Final answer
    x = 17,031.82

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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.