Home / 9,786.80-14,657.70-8,037.20

Finding the Fourth Proportional to 9,786.80, 14,657.70 and 8,037.20

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Solution

The fourth proportional to 9,786.80, 14,657.70 and 8,037.20 is: 12,037.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,786.80 : 14,657.70 = 8,037.20 : x
  2. Step 2: Convert to fraction form
    9,786.80/14,657.70 = 8,037.20/x
  3. Step 3: Cross multiply
    9,786.80x = 14,657.70 × 8,037.20
  4. Step 4: Simplify right side
    9,786.80x = 117,806,866.44
  5. Step 5: Solve for x
    x = 117,806,866.44/9,786.80
  6. Step 6: Final answer
    x = 12,037.32

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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.