Home / 9,000.55-13,490.70-4,322.80

Finding the Fourth Proportional to 9,000.55, 13,490.70 and 4,322.80

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Solution

The fourth proportional to 9,000.55, 13,490.70 and 4,322.80 is: 6,479.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,000.55 : 13,490.70 = 4,322.80 : x
  2. Step 2: Convert to fraction form
    9,000.55/13,490.70 = 4,322.80/x
  3. Step 3: Cross multiply
    9,000.55x = 13,490.70 × 4,322.80
  4. Step 4: Simplify right side
    9,000.55x = 58,317,597.96
  5. Step 5: Solve for x
    x = 58,317,597.96/9,000.55
  6. Step 6: Final answer
    x = 6,479.34

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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.