Home / 12,421.06-18,631.62-3,656.08

Finding the Fourth Proportional to 12,421.06, 18,631.62 and 3,656.08

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Solution

The fourth proportional to 12,421.06, 18,631.62 and 3,656.08 is: 5,484.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,421.06 : 18,631.62 = 3,656.08 : x
  2. Step 2: Convert to fraction form
    12,421.06/18,631.62 = 3,656.08/x
  3. Step 3: Cross multiply
    12,421.06x = 18,631.62 × 3,656.08
  4. Step 4: Simplify right side
    12,421.06x = 68,118,693.25
  5. Step 5: Solve for x
    x = 68,118,693.25/12,421.06
  6. Step 6: Final answer
    x = 5,484.13

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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.