Home / 15,929.88-21,984.39-9,556.75

Finding the Fourth Proportional to 15,929.88, 21,984.39 and 9,556.75

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Solution

The fourth proportional to 15,929.88, 21,984.39 and 9,556.75 is: 13,189.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,929.88 : 21,984.39 = 9,556.75 : x
  2. Step 2: Convert to fraction form
    15,929.88/21,984.39 = 9,556.75/x
  3. Step 3: Cross multiply
    15,929.88x = 21,984.39 × 9,556.75
  4. Step 4: Simplify right side
    15,929.88x = 210,099,264.17
  5. Step 5: Solve for x
    x = 210,099,264.17/15,929.88
  6. Step 6: Final answer
    x = 13,189.00

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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.