Home / 13,471.84-18,576.28-9,223.60

Finding the Fourth Proportional to 13,471.84, 18,576.28 and 9,223.60

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Solution

The fourth proportional to 13,471.84, 18,576.28 and 9,223.60 is: 12,718.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,471.84 : 18,576.28 = 9,223.60 : x
  2. Step 2: Convert to fraction form
    13,471.84/18,576.28 = 9,223.60/x
  3. Step 3: Cross multiply
    13,471.84x = 18,576.28 × 9,223.60
  4. Step 4: Simplify right side
    13,471.84x = 171,340,176.21
  5. Step 5: Solve for x
    x = 171,340,176.21/13,471.84
  6. Step 6: Final answer
    x = 12,718.39

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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.