Home / 7,715.03-11,572.55-2,784.67

Finding the Fourth Proportional to 7,715.03, 11,572.55 and 2,784.67

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Solution

The fourth proportional to 7,715.03, 11,572.55 and 2,784.67 is: 4,177.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,715.03 : 11,572.55 = 2,784.67 : x
  2. Step 2: Convert to fraction form
    7,715.03/11,572.55 = 2,784.67/x
  3. Step 3: Cross multiply
    7,715.03x = 11,572.55 × 2,784.67
  4. Step 4: Simplify right side
    7,715.03x = 32,225,732.81
  5. Step 5: Solve for x
    x = 32,225,732.81/7,715.03
  6. Step 6: Final answer
    x = 4,177.01

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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.