Home / 12,938.46-17,850.96-7,558.44

Finding the Fourth Proportional to 12,938.46, 17,850.96 and 7,558.44

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Solution

The fourth proportional to 12,938.46, 17,850.96 and 7,558.44 is: 10,428.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,938.46 : 17,850.96 = 7,558.44 : x
  2. Step 2: Convert to fraction form
    12,938.46/17,850.96 = 7,558.44/x
  3. Step 3: Cross multiply
    12,938.46x = 17,850.96 × 7,558.44
  4. Step 4: Simplify right side
    12,938.46x = 134,925,410.10
  5. Step 5: Solve for x
    x = 134,925,410.10/12,938.46
  6. Step 6: Final answer
    x = 10,428.24

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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.