Home / 12,177.04-16,804.56-7,145.12

Finding the Fourth Proportional to 12,177.04, 16,804.56 and 7,145.12

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Solution

The fourth proportional to 12,177.04, 16,804.56 and 7,145.12 is: 9,860.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,177.04 : 16,804.56 = 7,145.12 : x
  2. Step 2: Convert to fraction form
    12,177.04/16,804.56 = 7,145.12/x
  3. Step 3: Cross multiply
    12,177.04x = 16,804.56 × 7,145.12
  4. Step 4: Simplify right side
    12,177.04x = 120,070,597.75
  5. Step 5: Solve for x
    x = 120,070,597.75/12,177.04
  6. Step 6: Final answer
    x = 9,860.41

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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.