Home / 7,539.90-11,311.47-3,155.10

Finding the Fourth Proportional to 7,539.90, 11,311.47 and 3,155.10

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Solution

The fourth proportional to 7,539.90, 11,311.47 and 3,155.10 is: 4,733.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,539.90 : 11,311.47 = 3,155.10 : x
  2. Step 2: Convert to fraction form
    7,539.90/11,311.47 = 3,155.10/x
  3. Step 3: Cross multiply
    7,539.90x = 11,311.47 × 3,155.10
  4. Step 4: Simplify right side
    7,539.90x = 35,688,819.00
  5. Step 5: Solve for x
    x = 35,688,819.00/7,539.90
  6. Step 6: Final answer
    x = 4,733.33

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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.