Home / 13,278.54-18,323.67-7,613.01

Finding the Fourth Proportional to 13,278.54, 18,323.67 and 7,613.01

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Solution

The fourth proportional to 13,278.54, 18,323.67 and 7,613.01 is: 10,505.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,278.54 : 18,323.67 = 7,613.01 : x
  2. Step 2: Convert to fraction form
    13,278.54/18,323.67 = 7,613.01/x
  3. Step 3: Cross multiply
    13,278.54x = 18,323.67 × 7,613.01
  4. Step 4: Simplify right side
    13,278.54x = 139,498,268.67
  5. Step 5: Solve for x
    x = 139,498,268.67/13,278.54
  6. Step 6: Final answer
    x = 10,505.54

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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.