Home / 13,297.67-18,345.64-7,630.37

Finding the Fourth Proportional to 13,297.67, 18,345.64 and 7,630.37

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Solution

The fourth proportional to 13,297.67, 18,345.64 and 7,630.37 is: 10,526.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,297.67 : 18,345.64 = 7,630.37 : x
  2. Step 2: Convert to fraction form
    13,297.67/18,345.64 = 7,630.37/x
  3. Step 3: Cross multiply
    13,297.67x = 18,345.64 × 7,630.37
  4. Step 4: Simplify right side
    13,297.67x = 139,983,993.39
  5. Step 5: Solve for x
    x = 139,983,993.39/13,297.67
  6. Step 6: Final answer
    x = 10,526.96

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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.