Home / 19,687.36-27,168.08-11,303.68

Finding the Fourth Proportional to 19,687.36, 27,168.08 and 11,303.68

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Solution

The fourth proportional to 19,687.36, 27,168.08 and 11,303.68 is: 15,598.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,687.36 : 27,168.08 = 11,303.68 : x
  2. Step 2: Convert to fraction form
    19,687.36/27,168.08 = 11,303.68/x
  3. Step 3: Cross multiply
    19,687.36x = 27,168.08 × 11,303.68
  4. Step 4: Simplify right side
    19,687.36x = 307,099,282.53
  5. Step 5: Solve for x
    x = 307,099,282.53/19,687.36
  6. Step 6: Final answer
    x = 15,598.80

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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.