Home / 13,760.56-18,977.88-9,283.60

Finding the Fourth Proportional to 13,760.56, 18,977.88 and 9,283.60

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Solution

The fourth proportional to 13,760.56, 18,977.88 and 9,283.60 is: 12,803.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,760.56 : 18,977.88 = 9,283.60 : x
  2. Step 2: Convert to fraction form
    13,760.56/18,977.88 = 9,283.60/x
  3. Step 3: Cross multiply
    13,760.56x = 18,977.88 × 9,283.60
  4. Step 4: Simplify right side
    13,760.56x = 176,183,046.77
  5. Step 5: Solve for x
    x = 176,183,046.77/13,760.56
  6. Step 6: Final answer
    x = 12,803.48

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1.5x scale

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.