Home / 19,709.28-27,199.13-11,756.16

Finding the Fourth Proportional to 19,709.28, 27,199.13 and 11,756.16

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Solution

The fourth proportional to 19,709.28, 27,199.13 and 11,756.16 is: 16,223.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,709.28 : 27,199.13 = 11,756.16 : x
  2. Step 2: Convert to fraction form
    19,709.28/27,199.13 = 11,756.16/x
  3. Step 3: Cross multiply
    19,709.28x = 27,199.13 × 11,756.16
  4. Step 4: Simplify right side
    19,709.28x = 319,757,265.36
  5. Step 5: Solve for x
    x = 319,757,265.36/19,709.28
  6. Step 6: Final answer
    x = 16,223.69

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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.