Home / 8,127.65-11,211.95-4,768.21

Finding the Fourth Proportional to 8,127.65, 11,211.95 and 4,768.21

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Solution

The fourth proportional to 8,127.65, 11,211.95 and 4,768.21 is: 6,577.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,127.65 : 11,211.95 = 4,768.21 : x
  2. Step 2: Convert to fraction form
    8,127.65/11,211.95 = 4,768.21/x
  3. Step 3: Cross multiply
    8,127.65x = 11,211.95 × 4,768.21
  4. Step 4: Simplify right side
    8,127.65x = 53,460,958.04
  5. Step 5: Solve for x
    x = 53,460,958.04/8,127.65
  6. Step 6: Final answer
    x = 6,577.66

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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.