Home / 8,369.37-11,557.53-5,390.39

Finding the Fourth Proportional to 8,369.37, 11,557.53 and 5,390.39

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Solution

The fourth proportional to 8,369.37, 11,557.53 and 5,390.39 is: 7,443.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,369.37 : 11,557.53 = 5,390.39 : x
  2. Step 2: Convert to fraction form
    8,369.37/11,557.53 = 5,390.39/x
  3. Step 3: Cross multiply
    8,369.37x = 11,557.53 × 5,390.39
  4. Step 4: Simplify right side
    8,369.37x = 62,299,536.35
  5. Step 5: Solve for x
    x = 62,299,536.35/8,369.37
  6. Step 6: Final answer
    x = 7,443.75

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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.