Home / 15,913.52-23,847.64-11,720.55

Finding the Fourth Proportional to 15,913.52, 23,847.64 and 11,720.55

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Solution

The fourth proportional to 15,913.52, 23,847.64 and 11,720.55 is: 17,564.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,913.52 : 23,847.64 = 11,720.55 : x
  2. Step 2: Convert to fraction form
    15,913.52/23,847.64 = 11,720.55/x
  3. Step 3: Cross multiply
    15,913.52x = 23,847.64 × 11,720.55
  4. Step 4: Simplify right side
    15,913.52x = 279,507,515.99
  5. Step 5: Solve for x
    x = 279,507,515.99/15,913.52
  6. Step 6: Final answer
    x = 17,564.16

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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.