Home / 13,283.55-19,939.41-9,777.60

Finding the Fourth Proportional to 13,283.55, 19,939.41 and 9,777.60

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Solution

The fourth proportional to 13,283.55, 19,939.41 and 9,777.60 is: 14,676.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,283.55 : 19,939.41 = 9,777.60 : x
  2. Step 2: Convert to fraction form
    13,283.55/19,939.41 = 9,777.60/x
  3. Step 3: Cross multiply
    13,283.55x = 19,939.41 × 9,777.60
  4. Step 4: Simplify right side
    13,283.55x = 194,959,575.22
  5. Step 5: Solve for x
    x = 194,959,575.22/13,283.55
  6. Step 6: Final answer
    x = 14,676.77

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1.5x scale

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.