Home / 13,477.05-18,580.21-9,438.46

Finding the Fourth Proportional to 13,477.05, 18,580.21 and 9,438.46

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Solution

The fourth proportional to 13,477.05, 18,580.21 and 9,438.46 is: 13,012.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,477.05 : 18,580.21 = 9,438.46 : x
  2. Step 2: Convert to fraction form
    13,477.05/18,580.21 = 9,438.46/x
  3. Step 3: Cross multiply
    13,477.05x = 18,580.21 × 9,438.46
  4. Step 4: Simplify right side
    13,477.05x = 175,368,568.88
  5. Step 5: Solve for x
    x = 175,368,568.88/13,477.05
  6. Step 6: Final answer
    x = 13,012.39

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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.