Home / 9,611.80-14,429.40-5,454.70

Finding the Fourth Proportional to 9,611.80, 14,429.40 and 5,454.70

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Solution

The fourth proportional to 9,611.80, 14,429.40 and 5,454.70 is: 8,188.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,611.80 : 14,429.40 = 5,454.70 : x
  2. Step 2: Convert to fraction form
    9,611.80/14,429.40 = 5,454.70/x
  3. Step 3: Cross multiply
    9,611.80x = 14,429.40 × 5,454.70
  4. Step 4: Simplify right side
    9,611.80x = 78,708,048.18
  5. Step 5: Solve for x
    x = 78,708,048.18/9,611.80
  6. Step 6: Final answer
    x = 8,188.69

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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.