Home / 9,317.35-13,985.07-4,390.39

Finding the Fourth Proportional to 9,317.35, 13,985.07 and 4,390.39

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Solution

The fourth proportional to 9,317.35, 13,985.07 and 4,390.39 is: 6,589.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,317.35 : 13,985.07 = 4,390.39 : x
  2. Step 2: Convert to fraction form
    9,317.35/13,985.07 = 4,390.39/x
  3. Step 3: Cross multiply
    9,317.35x = 13,985.07 × 4,390.39
  4. Step 4: Simplify right side
    9,317.35x = 61,399,911.48
  5. Step 5: Solve for x
    x = 61,399,911.48/9,317.35
  6. Step 6: Final answer
    x = 6,589.85

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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.