Home / 15,622.02-23,438.49-9,771.78

Finding the Fourth Proportional to 15,622.02, 23,438.49 and 9,771.78

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Solution

The fourth proportional to 15,622.02, 23,438.49 and 9,771.78 is: 14,661.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,622.02 : 23,438.49 = 9,771.78 : x
  2. Step 2: Convert to fraction form
    15,622.02/23,438.49 = 9,771.78/x
  3. Step 3: Cross multiply
    15,622.02x = 23,438.49 × 9,771.78
  4. Step 4: Simplify right side
    15,622.02x = 229,035,767.81
  5. Step 5: Solve for x
    x = 229,035,767.81/15,622.02
  6. Step 6: Final answer
    x = 14,661.09

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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.