Home / 7,918.96-10,928.40-4,382.56

Finding the Fourth Proportional to 7,918.96, 10,928.40 and 4,382.56

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Solution

The fourth proportional to 7,918.96, 10,928.40 and 4,382.56 is: 6,048.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,918.96 : 10,928.40 = 4,382.56 : x
  2. Step 2: Convert to fraction form
    7,918.96/10,928.40 = 4,382.56/x
  3. Step 3: Cross multiply
    7,918.96x = 10,928.40 × 4,382.56
  4. Step 4: Simplify right side
    7,918.96x = 47,894,368.70
  5. Step 5: Solve for x
    x = 47,894,368.70/7,918.96
  6. Step 6: Final answer
    x = 6,048.06

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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.