Home / 15,799.08-21,802.80-8,725.56

Finding the Fourth Proportional to 15,799.08, 21,802.80 and 8,725.56

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Solution

The fourth proportional to 15,799.08, 21,802.80 and 8,725.56 is: 12,041.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,799.08 : 21,802.80 = 8,725.56 : x
  2. Step 2: Convert to fraction form
    15,799.08/21,802.80 = 8,725.56/x
  3. Step 3: Cross multiply
    15,799.08x = 21,802.80 × 8,725.56
  4. Step 4: Simplify right side
    15,799.08x = 190,241,639.57
  5. Step 5: Solve for x
    x = 190,241,639.57/15,799.08
  6. Step 6: Final answer
    x = 12,041.31

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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.