Home / 19,128.32-26,395.04-11,164.80

Finding the Fourth Proportional to 19,128.32, 26,395.04 and 11,164.80

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Solution

The fourth proportional to 19,128.32, 26,395.04 and 11,164.80 is: 15,406.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,128.32 : 26,395.04 = 11,164.80 : x
  2. Step 2: Convert to fraction form
    19,128.32/26,395.04 = 11,164.80/x
  3. Step 3: Cross multiply
    19,128.32x = 26,395.04 × 11,164.80
  4. Step 4: Simplify right side
    19,128.32x = 294,695,342.59
  5. Step 5: Solve for x
    x = 294,695,342.59/19,128.32
  6. Step 6: Final answer
    x = 15,406.23

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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.