Home / 8,960.40-13,426.04-5,490.32

Finding the Fourth Proportional to 8,960.40, 13,426.04 and 5,490.32

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Solution

The fourth proportional to 8,960.40, 13,426.04 and 5,490.32 is: 8,226.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,960.40 : 13,426.04 = 5,490.32 : x
  2. Step 2: Convert to fraction form
    8,960.40/13,426.04 = 5,490.32/x
  3. Step 3: Cross multiply
    8,960.40x = 13,426.04 × 5,490.32
  4. Step 4: Simplify right side
    8,960.40x = 73,713,255.93
  5. Step 5: Solve for x
    x = 73,713,255.93/8,960.40
  6. Step 6: Final answer
    x = 8,226.56

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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.