Home / 14,621.45-20,177.76-7,907.21

Finding the Fourth Proportional to 14,621.45, 20,177.76 and 7,907.21

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Solution

The fourth proportional to 14,621.45, 20,177.76 and 7,907.21 is: 10,912.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,621.45 : 20,177.76 = 7,907.21 : x
  2. Step 2: Convert to fraction form
    14,621.45/20,177.76 = 7,907.21/x
  3. Step 3: Cross multiply
    14,621.45x = 20,177.76 × 7,907.21
  4. Step 4: Simplify right side
    14,621.45x = 159,549,684.76
  5. Step 5: Solve for x
    x = 159,549,684.76/14,621.45
  6. Step 6: Final answer
    x = 10,912.03

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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.