Home / 7,178.90-10,756.98-5,539.46

Finding the Fourth Proportional to 7,178.90, 10,756.98 and 5,539.46

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Solution

The fourth proportional to 7,178.90, 10,756.98 and 5,539.46 is: 8,300.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,178.90 : 10,756.98 = 5,539.46 : x
  2. Step 2: Convert to fraction form
    7,178.90/10,756.98 = 5,539.46/x
  3. Step 3: Cross multiply
    7,178.90x = 10,756.98 × 5,539.46
  4. Step 4: Simplify right side
    7,178.90x = 59,587,860.43
  5. Step 5: Solve for x
    x = 59,587,860.43/7,178.90
  6. Step 6: Final answer
    x = 8,300.42

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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.