Home / 7,809.35-10,776.88-4,272.55

Finding the Fourth Proportional to 7,809.35, 10,776.88 and 4,272.55

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Solution

The fourth proportional to 7,809.35, 10,776.88 and 4,272.55 is: 5,896.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,809.35 : 10,776.88 = 4,272.55 : x
  2. Step 2: Convert to fraction form
    7,809.35/10,776.88 = 4,272.55/x
  3. Step 3: Cross multiply
    7,809.35x = 10,776.88 × 4,272.55
  4. Step 4: Simplify right side
    7,809.35x = 46,044,737.04
  5. Step 5: Solve for x
    x = 46,044,737.04/7,809.35
  6. Step 6: Final answer
    x = 5,896.11

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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.