Home / 7,528.71-11,288.94-5,978.67

Finding the Fourth Proportional to 7,528.71, 11,288.94 and 5,978.67

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Solution

The fourth proportional to 7,528.71, 11,288.94 and 5,978.67 is: 8,964.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,528.71 : 11,288.94 = 5,978.67 : x
  2. Step 2: Convert to fraction form
    7,528.71/11,288.94 = 5,978.67/x
  3. Step 3: Cross multiply
    7,528.71x = 11,288.94 × 5,978.67
  4. Step 4: Simplify right side
    7,528.71x = 67,492,846.91
  5. Step 5: Solve for x
    x = 67,492,846.91/7,528.71
  6. Step 6: Final answer
    x = 8,964.73

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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.