Home / 19,785.36-27,303.54-11,287.26

Finding the Fourth Proportional to 19,785.36, 27,303.54 and 11,287.26

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Solution

The fourth proportional to 19,785.36, 27,303.54 and 11,287.26 is: 15,576.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,785.36 : 27,303.54 = 11,287.26 : x
  2. Step 2: Convert to fraction form
    19,785.36/27,303.54 = 11,287.26/x
  3. Step 3: Cross multiply
    19,785.36x = 27,303.54 × 11,287.26
  4. Step 4: Simplify right side
    19,785.36x = 308,182,154.90
  5. Step 5: Solve for x
    x = 308,182,154.90/19,785.36
  6. Step 6: Final answer
    x = 15,576.27

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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.