Home / 7,980.12-11,970.18-3,592.46

Finding the Fourth Proportional to 7,980.12, 11,970.18 and 3,592.46

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Solution

The fourth proportional to 7,980.12, 11,970.18 and 3,592.46 is: 5,388.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,980.12 : 11,970.18 = 3,592.46 : x
  2. Step 2: Convert to fraction form
    7,980.12/11,970.18 = 3,592.46/x
  3. Step 3: Cross multiply
    7,980.12x = 11,970.18 × 3,592.46
  4. Step 4: Simplify right side
    7,980.12x = 43,002,332.99
  5. Step 5: Solve for x
    x = 43,002,332.99/7,980.12
  6. Step 6: Final answer
    x = 5,388.68

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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.