Home / 15,362.08-21,199.67-8,989.89

Finding the Fourth Proportional to 15,362.08, 21,199.67 and 8,989.89

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Solution

The fourth proportional to 15,362.08, 21,199.67 and 8,989.89 is: 12,406.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,362.08 : 21,199.67 = 8,989.89 : x
  2. Step 2: Convert to fraction form
    15,362.08/21,199.67 = 8,989.89/x
  3. Step 3: Cross multiply
    15,362.08x = 21,199.67 × 8,989.89
  4. Step 4: Simplify right side
    15,362.08x = 190,582,723.81
  5. Step 5: Solve for x
    x = 190,582,723.81/15,362.08
  6. Step 6: Final answer
    x = 12,406.05

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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.