Home / 13,181.70-19,768.47-6,938.32

Finding the Fourth Proportional to 13,181.70, 19,768.47 and 6,938.32

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Solution

The fourth proportional to 13,181.70, 19,768.47 and 6,938.32 is: 10,405.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,181.70 : 19,768.47 = 6,938.32 : x
  2. Step 2: Convert to fraction form
    13,181.70/19,768.47 = 6,938.32/x
  3. Step 3: Cross multiply
    13,181.70x = 19,768.47 × 6,938.32
  4. Step 4: Simplify right side
    13,181.70x = 137,159,970.77
  5. Step 5: Solve for x
    x = 137,159,970.77/13,181.70
  6. Step 6: Final answer
    x = 10,405.33

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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.