Home / 12,319.21-17,000.87-6,941.70

Finding the Fourth Proportional to 12,319.21, 17,000.87 and 6,941.70

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Solution

The fourth proportional to 12,319.21, 17,000.87 and 6,941.70 is: 9,579.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,319.21 : 17,000.87 = 6,941.70 : x
  2. Step 2: Convert to fraction form
    12,319.21/17,000.87 = 6,941.70/x
  3. Step 3: Cross multiply
    12,319.21x = 17,000.87 × 6,941.70
  4. Step 4: Simplify right side
    12,319.21x = 118,014,907.01
  5. Step 5: Solve for x
    x = 118,014,907.01/12,319.21
  6. Step 6: Final answer
    x = 9,579.74

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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.