Home / 10,928.80-16,409.40-6,554.80

Finding the Fourth Proportional to 10,928.80, 16,409.40 and 6,554.80

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Solution

The fourth proportional to 10,928.80, 16,409.40 and 6,554.80 is: 9,841.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,928.80 : 16,409.40 = 6,554.80 : x
  2. Step 2: Convert to fraction form
    10,928.80/16,409.40 = 6,554.80/x
  3. Step 3: Cross multiply
    10,928.80x = 16,409.40 × 6,554.80
  4. Step 4: Simplify right side
    10,928.80x = 107,560,335.12
  5. Step 5: Solve for x
    x = 107,560,335.12/10,928.80
  6. Step 6: Final answer
    x = 9,841.92

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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.