Home / 8,991.36-13,490.88-4,830.24

Finding the Fourth Proportional to 8,991.36, 13,490.88 and 4,830.24

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Solution

The fourth proportional to 8,991.36, 13,490.88 and 4,830.24 is: 7,247.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,991.36 : 13,490.88 = 4,830.24 : x
  2. Step 2: Convert to fraction form
    8,991.36/13,490.88 = 4,830.24/x
  3. Step 3: Cross multiply
    8,991.36x = 13,490.88 × 4,830.24
  4. Step 4: Simplify right side
    8,991.36x = 65,164,188.21
  5. Step 5: Solve for x
    x = 65,164,188.21/8,991.36
  6. Step 6: Final answer
    x = 7,247.42

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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.