Home / 11,445.47-15,795.26-6,409.58

Finding the Fourth Proportional to 11,445.47, 15,795.26 and 6,409.58

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Solution

The fourth proportional to 11,445.47, 15,795.26 and 6,409.58 is: 8,845.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,445.47 : 15,795.26 = 6,409.58 : x
  2. Step 2: Convert to fraction form
    11,445.47/15,795.26 = 6,409.58/x
  3. Step 3: Cross multiply
    11,445.47x = 15,795.26 × 6,409.58
  4. Step 4: Simplify right side
    11,445.47x = 101,240,970.44
  5. Step 5: Solve for x
    x = 101,240,970.44/11,445.47
  6. Step 6: Final answer
    x = 8,845.51

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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.