Home / 9,385.80-12,947.46-6,998.28

Finding the Fourth Proportional to 9,385.80, 12,947.46 and 6,998.28

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Solution

The fourth proportional to 9,385.80, 12,947.46 and 6,998.28 is: 9,653.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,385.80 : 12,947.46 = 6,998.28 : x
  2. Step 2: Convert to fraction form
    9,385.80/12,947.46 = 6,998.28/x
  3. Step 3: Cross multiply
    9,385.80x = 12,947.46 × 6,998.28
  4. Step 4: Simplify right side
    9,385.80x = 90,609,950.37
  5. Step 5: Solve for x
    x = 90,609,950.37/9,385.80
  6. Step 6: Final answer
    x = 9,653.94

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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.