Home / 8,303.36-12,455.28-3,108.24

Finding the Fourth Proportional to 8,303.36, 12,455.28 and 3,108.24

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Solution

The fourth proportional to 8,303.36, 12,455.28 and 3,108.24 is: 4,662.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,303.36 : 12,455.28 = 3,108.24 : x
  2. Step 2: Convert to fraction form
    8,303.36/12,455.28 = 3,108.24/x
  3. Step 3: Cross multiply
    8,303.36x = 12,455.28 × 3,108.24
  4. Step 4: Simplify right side
    8,303.36x = 38,713,999.51
  5. Step 5: Solve for x
    x = 38,713,999.51/8,303.36
  6. Step 6: Final answer
    x = 4,662.45

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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.