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Finding the Fourth Proportional to 8,984.98, 13,477.49 and 3,140.22

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Solution

The fourth proportional to 8,984.98, 13,477.49 and 3,140.22 is: 4,710.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,984.98 : 13,477.49 = 3,140.22 : x
  2. Step 2: Convert to fraction form
    8,984.98/13,477.49 = 3,140.22/x
  3. Step 3: Cross multiply
    8,984.98x = 13,477.49 × 3,140.22
  4. Step 4: Simplify right side
    8,984.98x = 42,322,254.45
  5. Step 5: Solve for x
    x = 42,322,254.45/8,984.98
  6. Step 6: Final answer
    x = 4,710.34

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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.