Home / 12,768.03-19,140.71-4,975.02

Finding the Fourth Proportional to 12,768.03, 19,140.71 and 4,975.02

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Solution

The fourth proportional to 12,768.03, 19,140.71 and 4,975.02 is: 7,458.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,768.03 : 19,140.71 = 4,975.02 : x
  2. Step 2: Convert to fraction form
    12,768.03/19,140.71 = 4,975.02/x
  3. Step 3: Cross multiply
    12,768.03x = 19,140.71 × 4,975.02
  4. Step 4: Simplify right side
    12,768.03x = 95,225,390.19
  5. Step 5: Solve for x
    x = 95,225,390.19/12,768.03
  6. Step 6: Final answer
    x = 7,458.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.