Home / 14,576.22-20,121.93-9,278.28

Finding the Fourth Proportional to 14,576.22, 20,121.93 and 9,278.28

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Solution

The fourth proportional to 14,576.22, 20,121.93 and 9,278.28 is: 12,808.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,576.22 : 20,121.93 = 9,278.28 : x
  2. Step 2: Convert to fraction form
    14,576.22/20,121.93 = 9,278.28/x
  3. Step 3: Cross multiply
    14,576.22x = 20,121.93 × 9,278.28
  4. Step 4: Simplify right side
    14,576.22x = 186,696,900.68
  5. Step 5: Solve for x
    x = 186,696,900.68/14,576.22
  6. Step 6: Final answer
    x = 12,808.32

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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.