Home / 9,418.99-13,000.60-6,436.03

Finding the Fourth Proportional to 9,418.99, 13,000.60 and 6,436.03

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Solution

The fourth proportional to 9,418.99, 13,000.60 and 6,436.03 is: 8,883.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,418.99 : 13,000.60 = 6,436.03 : x
  2. Step 2: Convert to fraction form
    9,418.99/13,000.60 = 6,436.03/x
  3. Step 3: Cross multiply
    9,418.99x = 13,000.60 × 6,436.03
  4. Step 4: Simplify right side
    9,418.99x = 83,672,219.44
  5. Step 5: Solve for x
    x = 83,672,219.44/9,418.99
  6. Step 6: Final answer
    x = 8,883.35

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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.