Home / 11,368.40-17,052.55-5,121.10

Finding the Fourth Proportional to 11,368.40, 17,052.55 and 5,121.10

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Solution

The fourth proportional to 11,368.40, 17,052.55 and 5,121.10 is: 7,681.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,368.40 : 17,052.55 = 5,121.10 : x
  2. Step 2: Convert to fraction form
    11,368.40/17,052.55 = 5,121.10/x
  3. Step 3: Cross multiply
    11,368.40x = 17,052.55 × 5,121.10
  4. Step 4: Simplify right side
    11,368.40x = 87,327,813.81
  5. Step 5: Solve for x
    x = 87,327,813.81/11,368.40
  6. Step 6: Final answer
    x = 7,681.63

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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.