Home / 12,253.86-18,386.87-4,858.16

Finding the Fourth Proportional to 12,253.86, 18,386.87 and 4,858.16

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Solution

The fourth proportional to 12,253.86, 18,386.87 and 4,858.16 is: 7,289.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,253.86 : 18,386.87 = 4,858.16 : x
  2. Step 2: Convert to fraction form
    12,253.86/18,386.87 = 4,858.16/x
  3. Step 3: Cross multiply
    12,253.86x = 18,386.87 × 4,858.16
  4. Step 4: Simplify right side
    12,253.86x = 89,326,240.13
  5. Step 5: Solve for x
    x = 89,326,240.13/12,253.86
  6. Step 6: Final answer
    x = 7,289.64

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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.