Home / 7,769.08-11,605.60-6,987.84

Finding the Fourth Proportional to 7,769.08, 11,605.60 and 6,987.84

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Solution

The fourth proportional to 7,769.08, 11,605.60 and 6,987.84 is: 10,438.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,769.08 : 11,605.60 = 6,987.84 : x
  2. Step 2: Convert to fraction form
    7,769.08/11,605.60 = 6,987.84/x
  3. Step 3: Cross multiply
    7,769.08x = 11,605.60 × 6,987.84
  4. Step 4: Simplify right side
    7,769.08x = 81,098,075.90
  5. Step 5: Solve for x
    x = 81,098,075.90/7,769.08
  6. Step 6: Final answer
    x = 10,438.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.