Home / 8,980.78-12,393.25-5,001.81

Finding the Fourth Proportional to 8,980.78, 12,393.25 and 5,001.81

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Solution

The fourth proportional to 8,980.78, 12,393.25 and 5,001.81 is: 6,902.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,980.78 : 12,393.25 = 5,001.81 : x
  2. Step 2: Convert to fraction form
    8,980.78/12,393.25 = 5,001.81/x
  3. Step 3: Cross multiply
    8,980.78x = 12,393.25 × 5,001.81
  4. Step 4: Simplify right side
    8,980.78x = 61,988,681.78
  5. Step 5: Solve for x
    x = 61,988,681.78/8,980.78
  6. Step 6: Final answer
    x = 6,902.37

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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.