Home / 7,758.84-11,643.90-5,816.28

Finding the Fourth Proportional to 7,758.84, 11,643.90 and 5,816.28

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Solution

The fourth proportional to 7,758.84, 11,643.90 and 5,816.28 is: 8,728.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,758.84 : 11,643.90 = 5,816.28 : x
  2. Step 2: Convert to fraction form
    7,758.84/11,643.90 = 5,816.28/x
  3. Step 3: Cross multiply
    7,758.84x = 11,643.90 × 5,816.28
  4. Step 4: Simplify right side
    7,758.84x = 67,724,182.69
  5. Step 5: Solve for x
    x = 67,724,182.69/7,758.84
  6. Step 6: Final answer
    x = 8,728.65

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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.