Home / 19,664.16-27,135.72-10,711.68

Finding the Fourth Proportional to 19,664.16, 27,135.72 and 10,711.68

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Solution

The fourth proportional to 19,664.16, 27,135.72 and 10,711.68 is: 14,781.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,664.16 : 27,135.72 = 10,711.68 : x
  2. Step 2: Convert to fraction form
    19,664.16/27,135.72 = 10,711.68/x
  3. Step 3: Cross multiply
    19,664.16x = 27,135.72 × 10,711.68
  4. Step 4: Simplify right side
    19,664.16x = 290,669,149.21
  5. Step 5: Solve for x
    x = 290,669,149.21/19,664.16
  6. Step 6: Final answer
    x = 14,781.67

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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.