Home / 7,178.88-10,777.68-5,536.56

Finding the Fourth Proportional to 7,178.88, 10,777.68 and 5,536.56

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Solution

The fourth proportional to 7,178.88, 10,777.68 and 5,536.56 is: 8,312.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,178.88 : 10,777.68 = 5,536.56 : x
  2. Step 2: Convert to fraction form
    7,178.88/10,777.68 = 5,536.56/x
  3. Step 3: Cross multiply
    7,178.88x = 10,777.68 × 5,536.56
  4. Step 4: Simplify right side
    7,178.88x = 59,671,271.98
  5. Step 5: Solve for x
    x = 59,671,271.98/7,178.88
  6. Step 6: Final answer
    x = 8,312.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.