Home / 7,918.84-10,928.15-4,382.38

Finding the Fourth Proportional to 7,918.84, 10,928.15 and 4,382.38

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Solution

The fourth proportional to 7,918.84, 10,928.15 and 4,382.38 is: 6,047.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,918.84 : 10,928.15 = 4,382.38 : x
  2. Step 2: Convert to fraction form
    7,918.84/10,928.15 = 4,382.38/x
  3. Step 3: Cross multiply
    7,918.84x = 10,928.15 × 4,382.38
  4. Step 4: Simplify right side
    7,918.84x = 47,891,306.00
  5. Step 5: Solve for x
    x = 47,891,306.00/7,918.84
  6. Step 6: Final answer
    x = 6,047.77

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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.