Home / 11,400.32-15,730.80-6,924.26

Finding the Fourth Proportional to 11,400.32, 15,730.80 and 6,924.26

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Solution

The fourth proportional to 11,400.32, 15,730.80 and 6,924.26 is: 9,554.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,400.32 : 15,730.80 = 6,924.26 : x
  2. Step 2: Convert to fraction form
    11,400.32/15,730.80 = 6,924.26/x
  3. Step 3: Cross multiply
    11,400.32x = 15,730.80 × 6,924.26
  4. Step 4: Simplify right side
    11,400.32x = 108,924,149.21
  5. Step 5: Solve for x
    x = 108,924,149.21/11,400.32
  6. Step 6: Final answer
    x = 9,554.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.