Home / 10,378.08-14,321.74-5,662.36

Finding the Fourth Proportional to 10,378.08, 14,321.74 and 5,662.36

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Solution

The fourth proportional to 10,378.08, 14,321.74 and 5,662.36 is: 7,814.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,378.08 : 14,321.74 = 5,662.36 : x
  2. Step 2: Convert to fraction form
    10,378.08/14,321.74 = 5,662.36/x
  3. Step 3: Cross multiply
    10,378.08x = 14,321.74 × 5,662.36
  4. Step 4: Simplify right side
    10,378.08x = 81,094,847.71
  5. Step 5: Solve for x
    x = 81,094,847.71/10,378.08
  6. Step 6: Final answer
    x = 7,814.05

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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.