Home / 7,768.16-10,720.32-4,623.92

Finding the Fourth Proportional to 7,768.16, 10,720.32 and 4,623.92

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Solution

The fourth proportional to 7,768.16, 10,720.32 and 4,623.92 is: 6,381.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,768.16 : 10,720.32 = 4,623.92 : x
  2. Step 2: Convert to fraction form
    7,768.16/10,720.32 = 4,623.92/x
  3. Step 3: Cross multiply
    7,768.16x = 10,720.32 × 4,623.92
  4. Step 4: Simplify right side
    7,768.16x = 49,569,902.05
  5. Step 5: Solve for x
    x = 49,569,902.05/7,768.16
  6. Step 6: Final answer
    x = 6,381.16

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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.