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Finding the Fourth Proportional to 8,954.76, 13,409.30 and 7,490.28

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Solution

The fourth proportional to 8,954.76, 13,409.30 and 7,490.28 is: 11,216.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,954.76 : 13,409.30 = 7,490.28 : x
  2. Step 2: Convert to fraction form
    8,954.76/13,409.30 = 7,490.28/x
  3. Step 3: Cross multiply
    8,954.76x = 13,409.30 × 7,490.28
  4. Step 4: Simplify right side
    8,954.76x = 100,439,411.60
  5. Step 5: Solve for x
    x = 100,439,411.60/8,954.76
  6. Step 6: Final answer
    x = 11,216.32

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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.