Home / 7,128.06-9,839.51-4,769.34

Finding the Fourth Proportional to 7,128.06, 9,839.51 and 4,769.34

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Solution

The fourth proportional to 7,128.06, 9,839.51 and 4,769.34 is: 6,583.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128.06 : 9,839.51 = 4,769.34 : x
  2. Step 2: Convert to fraction form
    7,128.06/9,839.51 = 4,769.34/x
  3. Step 3: Cross multiply
    7,128.06x = 9,839.51 × 4,769.34
  4. Step 4: Simplify right side
    7,128.06x = 46,927,968.62
  5. Step 5: Solve for x
    x = 46,927,968.62/7,128.06
  6. Step 6: Final answer
    x = 6,583.55

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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.