Home / 11,639.40-16,056.54-7,383.12

Finding the Fourth Proportional to 11,639.40, 16,056.54 and 7,383.12

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Solution

The fourth proportional to 11,639.40, 16,056.54 and 7,383.12 is: 10,185.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,639.40 : 16,056.54 = 7,383.12 : x
  2. Step 2: Convert to fraction form
    11,639.40/16,056.54 = 7,383.12/x
  3. Step 3: Cross multiply
    11,639.40x = 16,056.54 × 7,383.12
  4. Step 4: Simplify right side
    11,639.40x = 118,547,361.60
  5. Step 5: Solve for x
    x = 118,547,361.60/11,639.40
  6. Step 6: Final answer
    x = 10,185.01

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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.