Home / 18,215.28-27,303.48-13,005.36

Finding the Fourth Proportional to 18,215.28, 27,303.48 and 13,005.36

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Solution

The fourth proportional to 18,215.28, 27,303.48 and 13,005.36 is: 19,494.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,215.28 : 27,303.48 = 13,005.36 : x
  2. Step 2: Convert to fraction form
    18,215.28/27,303.48 = 13,005.36/x
  3. Step 3: Cross multiply
    18,215.28x = 27,303.48 × 13,005.36
  4. Step 4: Simplify right side
    18,215.28x = 355,091,586.65
  5. Step 5: Solve for x
    x = 355,091,586.65/18,215.28
  6. Step 6: Final answer
    x = 19,494.16

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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.