Home / 15,799.51-21,802.23-8,725.38

Finding the Fourth Proportional to 15,799.51, 21,802.23 and 8,725.38

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Solution

The fourth proportional to 15,799.51, 21,802.23 and 8,725.38 is: 12,040.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,799.51 : 21,802.23 = 8,725.38 : x
  2. Step 2: Convert to fraction form
    15,799.51/21,802.23 = 8,725.38/x
  3. Step 3: Cross multiply
    15,799.51x = 21,802.23 × 8,725.38
  4. Step 4: Simplify right side
    15,799.51x = 190,232,741.60
  5. Step 5: Solve for x
    x = 190,232,741.60/15,799.51
  6. Step 6: Final answer
    x = 12,040.42

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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.