Home / 8,312.42-12,468.48-3,933.02

Finding the Fourth Proportional to 8,312.42, 12,468.48 and 3,933.02

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Solution

The fourth proportional to 8,312.42, 12,468.48 and 3,933.02 is: 5,899.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,312.42 : 12,468.48 = 3,933.02 : x
  2. Step 2: Convert to fraction form
    8,312.42/12,468.48 = 3,933.02/x
  3. Step 3: Cross multiply
    8,312.42x = 12,468.48 × 3,933.02
  4. Step 4: Simplify right side
    8,312.42x = 49,038,718.87
  5. Step 5: Solve for x
    x = 49,038,718.87/8,312.42
  6. Step 6: Final answer
    x = 5,899.46

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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.