Home / 13,283.64-18,330.70-7,314.15

Finding the Fourth Proportional to 13,283.64, 18,330.70 and 7,314.15

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Solution

The fourth proportional to 13,283.64, 18,330.70 and 7,314.15 is: 10,093.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,283.64 : 18,330.70 = 7,314.15 : x
  2. Step 2: Convert to fraction form
    13,283.64/18,330.70 = 7,314.15/x
  3. Step 3: Cross multiply
    13,283.64x = 18,330.70 × 7,314.15
  4. Step 4: Simplify right side
    13,283.64x = 134,073,361.18
  5. Step 5: Solve for x
    x = 134,073,361.18/13,283.64
  6. Step 6: Final answer
    x = 10,093.12

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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.