Home / 8,439.84-11,647.97-5,084.35

Finding the Fourth Proportional to 8,439.84, 11,647.97 and 5,084.35

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Solution

The fourth proportional to 8,439.84, 11,647.97 and 5,084.35 is: 7,017.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,439.84 : 11,647.97 = 5,084.35 : x
  2. Step 2: Convert to fraction form
    8,439.84/11,647.97 = 5,084.35/x
  3. Step 3: Cross multiply
    8,439.84x = 11,647.97 × 5,084.35
  4. Step 4: Simplify right side
    8,439.84x = 59,222,320.79
  5. Step 5: Solve for x
    x = 59,222,320.79/8,439.84
  6. Step 6: Final answer
    x = 7,017.00

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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.