Home / 14,621.51-20,177.63-7,907.12

Finding the Fourth Proportional to 14,621.51, 20,177.63 and 7,907.12

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Solution

The fourth proportional to 14,621.51, 20,177.63 and 7,907.12 is: 10,911.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,621.51 : 20,177.63 = 7,907.12 : x
  2. Step 2: Convert to fraction form
    14,621.51/20,177.63 = 7,907.12/x
  3. Step 3: Cross multiply
    14,621.51x = 20,177.63 × 7,907.12
  4. Step 4: Simplify right side
    14,621.51x = 159,546,801.30
  5. Step 5: Solve for x
    x = 159,546,801.30/14,621.51
  6. Step 6: Final answer
    x = 10,911.79

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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.