Home / 8,362.08-12,540.24-3,430.32

Finding the Fourth Proportional to 8,362.08, 12,540.24 and 3,430.32

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Solution

The fourth proportional to 8,362.08, 12,540.24 and 3,430.32 is: 5,144.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,362.08 : 12,540.24 = 3,430.32 : x
  2. Step 2: Convert to fraction form
    8,362.08/12,540.24 = 3,430.32/x
  3. Step 3: Cross multiply
    8,362.08x = 12,540.24 × 3,430.32
  4. Step 4: Simplify right side
    8,362.08x = 43,017,036.08
  5. Step 5: Solve for x
    x = 43,017,036.08/8,362.08
  6. Step 6: Final answer
    x = 5,144.30

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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.