Home / 7,947.63-10,928.84-6,897.87

Finding the Fourth Proportional to 7,947.63, 10,928.84 and 6,897.87

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Solution

The fourth proportional to 7,947.63, 10,928.84 and 6,897.87 is: 9,485.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,947.63 : 10,928.84 = 6,897.87 : x
  2. Step 2: Convert to fraction form
    7,947.63/10,928.84 = 6,897.87/x
  3. Step 3: Cross multiply
    7,947.63x = 10,928.84 × 6,897.87
  4. Step 4: Simplify right side
    7,947.63x = 75,385,717.57
  5. Step 5: Solve for x
    x = 75,385,717.57/7,947.63
  6. Step 6: Final answer
    x = 9,485.31

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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.