Home / 8,278.89-12,420.08-2,435.01

Finding the Fourth Proportional to 8,278.89, 12,420.08 and 2,435.01

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Solution

The fourth proportional to 8,278.89, 12,420.08 and 2,435.01 is: 3,653.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,278.89 : 12,420.08 = 2,435.01 : x
  2. Step 2: Convert to fraction form
    8,278.89/12,420.08 = 2,435.01/x
  3. Step 3: Cross multiply
    8,278.89x = 12,420.08 × 2,435.01
  4. Step 4: Simplify right side
    8,278.89x = 30,243,006.83
  5. Step 5: Solve for x
    x = 30,243,006.83/8,278.89
  6. Step 6: Final answer
    x = 3,653.03

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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.