Home / 13,583.81-20,370.59-5,686.87

Finding the Fourth Proportional to 13,583.81, 20,370.59 and 5,686.87

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Solution

The fourth proportional to 13,583.81, 20,370.59 and 5,686.87 is: 8,528.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,583.81 : 20,370.59 = 5,686.87 : x
  2. Step 2: Convert to fraction form
    13,583.81/20,370.59 = 5,686.87/x
  3. Step 3: Cross multiply
    13,583.81x = 20,370.59 × 5,686.87
  4. Step 4: Simplify right side
    13,583.81x = 115,844,836.02
  5. Step 5: Solve for x
    x = 115,844,836.02/13,583.81
  6. Step 6: Final answer
    x = 8,528.16

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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.