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Finding the Fourth Proportional to 11,361.60, 17,030.70 and 5,124.60

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Solution

The fourth proportional to 11,361.60, 17,030.70 and 5,124.60 is: 7,681.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,361.60 : 17,030.70 = 5,124.60 : x
  2. Step 2: Convert to fraction form
    11,361.60/17,030.70 = 5,124.60/x
  3. Step 3: Cross multiply
    11,361.60x = 17,030.70 × 5,124.60
  4. Step 4: Simplify right side
    11,361.60x = 87,275,525.22
  5. Step 5: Solve for x
    x = 87,275,525.22/11,361.60
  6. Step 6: Final answer
    x = 7,681.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.