Home / 12,316.58-18,445.37-8,975.87

Finding the Fourth Proportional to 12,316.58, 18,445.37 and 8,975.87

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Solution

The fourth proportional to 12,316.58, 18,445.37 and 8,975.87 is: 13,442.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,316.58 : 18,445.37 = 8,975.87 : x
  2. Step 2: Convert to fraction form
    12,316.58/18,445.37 = 8,975.87/x
  3. Step 3: Cross multiply
    12,316.58x = 18,445.37 × 8,975.87
  4. Step 4: Simplify right side
    12,316.58x = 165,563,106.12
  5. Step 5: Solve for x
    x = 165,563,106.12/12,316.58
  6. Step 6: Final answer
    x = 13,442.30

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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.