Home / 7,486.76-11,220.15-3,539.06

Finding the Fourth Proportional to 7,486.76, 11,220.15 and 3,539.06

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Solution

The fourth proportional to 7,486.76, 11,220.15 and 3,539.06 is: 5,303.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,486.76 : 11,220.15 = 3,539.06 : x
  2. Step 2: Convert to fraction form
    7,486.76/11,220.15 = 3,539.06/x
  3. Step 3: Cross multiply
    7,486.76x = 11,220.15 × 3,539.06
  4. Step 4: Simplify right side
    7,486.76x = 39,708,784.06
  5. Step 5: Solve for x
    x = 39,708,784.06/7,486.76
  6. Step 6: Final answer
    x = 5,303.87

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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.