Home / 8,436.93-12,643.95-4,679.84

Finding the Fourth Proportional to 8,436.93, 12,643.95 and 4,679.84

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Solution

The fourth proportional to 8,436.93, 12,643.95 and 4,679.84 is: 7,013.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,436.93 : 12,643.95 = 4,679.84 : x
  2. Step 2: Convert to fraction form
    8,436.93/12,643.95 = 4,679.84/x
  3. Step 3: Cross multiply
    8,436.93x = 12,643.95 × 4,679.84
  4. Step 4: Simplify right side
    8,436.93x = 59,171,685.80
  5. Step 5: Solve for x
    x = 59,171,685.80/8,436.93
  6. Step 6: Final answer
    x = 7,013.42

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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.