Home / 7,664.80-10,577.55-4,215.53

Finding the Fourth Proportional to 7,664.80, 10,577.55 and 4,215.53

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Solution

The fourth proportional to 7,664.80, 10,577.55 and 4,215.53 is: 5,817.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,664.80 : 10,577.55 = 4,215.53 : x
  2. Step 2: Convert to fraction form
    7,664.80/10,577.55 = 4,215.53/x
  3. Step 3: Cross multiply
    7,664.80x = 10,577.55 × 4,215.53
  4. Step 4: Simplify right side
    7,664.80x = 44,589,988.94
  5. Step 5: Solve for x
    x = 44,589,988.94/7,664.80
  6. Step 6: Final answer
    x = 5,817.50

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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.