Home / 15,833.26-21,848.01-9,121.08

Finding the Fourth Proportional to 15,833.26, 21,848.01 and 9,121.08

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Solution

The fourth proportional to 15,833.26, 21,848.01 and 9,121.08 is: 12,586.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,833.26 : 21,848.01 = 9,121.08 : x
  2. Step 2: Convert to fraction form
    15,833.26/21,848.01 = 9,121.08/x
  3. Step 3: Cross multiply
    15,833.26x = 21,848.01 × 9,121.08
  4. Step 4: Simplify right side
    15,833.26x = 199,277,447.05
  5. Step 5: Solve for x
    x = 199,277,447.05/15,833.26
  6. Step 6: Final answer
    x = 12,586.00

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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.