Home / 18,325.50-25,289.28-9,942

Finding the Fourth Proportional to 18,325.50, 25,289.28 and 9,942

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Solution

The fourth proportional to 18,325.50, 25,289.28 and 9,942 is: 13,720.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,325.50 : 25,289.28 = 9,942 : x
  2. Step 2: Convert to fraction form
    18,325.50/25,289.28 = 9,942/x
  3. Step 3: Cross multiply
    18,325.50x = 25,289.28 × 9,942
  4. Step 4: Simplify right side
    18,325.50x = 251,426,021.76
  5. Step 5: Solve for x
    x = 251,426,021.76/18,325.50
  6. Step 6: Final answer
    x = 13,720.01

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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.