Home / 15,929.13-21,983.36-9,556.00

Finding the Fourth Proportional to 15,929.13, 21,983.36 and 9,556.00

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Solution

The fourth proportional to 15,929.13, 21,983.36 and 9,556.00 is: 13,187.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,929.13 : 21,983.36 = 9,556.00 : x
  2. Step 2: Convert to fraction form
    15,929.13/21,983.36 = 9,556.00/x
  3. Step 3: Cross multiply
    15,929.13x = 21,983.36 × 9,556.00
  4. Step 4: Simplify right side
    15,929.13x = 210,072,885.42
  5. Step 5: Solve for x
    x = 210,072,885.42/15,929.13
  6. Step 6: Final answer
    x = 13,187.97

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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.