Home / 11,889.81-17,840.50-4,875.01

Finding the Fourth Proportional to 11,889.81, 17,840.50 and 4,875.01

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Solution

The fourth proportional to 11,889.81, 17,840.50 and 4,875.01 is: 7,314.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,889.81 : 17,840.50 = 4,875.01 : x
  2. Step 2: Convert to fraction form
    11,889.81/17,840.50 = 4,875.01/x
  3. Step 3: Cross multiply
    11,889.81x = 17,840.50 × 4,875.01
  4. Step 4: Simplify right side
    11,889.81x = 86,972,559.12
  5. Step 5: Solve for x
    x = 86,972,559.12/11,889.81
  6. Step 6: Final answer
    x = 7,314.88

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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.