Home / 12,583.76-18,826.40-9,080.56

Finding the Fourth Proportional to 12,583.76, 18,826.40 and 9,080.56

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Solution

The fourth proportional to 12,583.76, 18,826.40 and 9,080.56 is: 13,585.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,583.76 : 18,826.40 = 9,080.56 : x
  2. Step 2: Convert to fraction form
    12,583.76/18,826.40 = 9,080.56/x
  3. Step 3: Cross multiply
    12,583.76x = 18,826.40 × 9,080.56
  4. Step 4: Simplify right side
    12,583.76x = 170,954,254.78
  5. Step 5: Solve for x
    x = 170,954,254.78/12,583.76
  6. Step 6: Final answer
    x = 13,585.31

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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.