Home / 7,868.16-11,782.78-4,937.60

Finding the Fourth Proportional to 7,868.16, 11,782.78 and 4,937.60

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Solution

The fourth proportional to 7,868.16, 11,782.78 and 4,937.60 is: 7,394.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,868.16 : 11,782.78 = 4,937.60 : x
  2. Step 2: Convert to fraction form
    7,868.16/11,782.78 = 4,937.60/x
  3. Step 3: Cross multiply
    7,868.16x = 11,782.78 × 4,937.60
  4. Step 4: Simplify right side
    7,868.16x = 58,178,654.53
  5. Step 5: Solve for x
    x = 58,178,654.53/7,868.16
  6. Step 6: Final answer
    x = 7,394.19

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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.