Home / 12,558.48-18,837.90-5,985.36

Finding the Fourth Proportional to 12,558.48, 18,837.90 and 5,985.36

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Solution

The fourth proportional to 12,558.48, 18,837.90 and 5,985.36 is: 8,978.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,558.48 : 18,837.90 = 5,985.36 : x
  2. Step 2: Convert to fraction form
    12,558.48/18,837.90 = 5,985.36/x
  3. Step 3: Cross multiply
    12,558.48x = 18,837.90 × 5,985.36
  4. Step 4: Simplify right side
    12,558.48x = 112,751,613.14
  5. Step 5: Solve for x
    x = 112,751,613.14/12,558.48
  6. Step 6: Final answer
    x = 8,978.13

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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.