Home / 7,528.70-11,288.96-5,978.68

Finding the Fourth Proportional to 7,528.70, 11,288.96 and 5,978.68

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Solution

The fourth proportional to 7,528.70, 11,288.96 and 5,978.68 is: 8,964.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,528.70 : 11,288.96 = 5,978.68 : x
  2. Step 2: Convert to fraction form
    7,528.70/11,288.96 = 5,978.68/x
  3. Step 3: Cross multiply
    7,528.70x = 11,288.96 × 5,978.68
  4. Step 4: Simplify right side
    7,528.70x = 67,493,079.37
  5. Step 5: Solve for x
    x = 67,493,079.37/7,528.70
  6. Step 6: Final answer
    x = 8,964.77

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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.