Home / 13,557.06-18,709.26-7,508.07

Finding the Fourth Proportional to 13,557.06, 18,709.26 and 7,508.07

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Solution

The fourth proportional to 13,557.06, 18,709.26 and 7,508.07 is: 10,361.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,557.06 : 18,709.26 = 7,508.07 : x
  2. Step 2: Convert to fraction form
    13,557.06/18,709.26 = 7,508.07/x
  3. Step 3: Cross multiply
    13,557.06x = 18,709.26 × 7,508.07
  4. Step 4: Simplify right side
    13,557.06x = 140,470,433.73
  5. Step 5: Solve for x
    x = 140,470,433.73/13,557.06
  6. Step 6: Final answer
    x = 10,361.42

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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.