Home / 7,618.05-11,412.50-5,140.67

Finding the Fourth Proportional to 7,618.05, 11,412.50 and 5,140.67

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Solution

The fourth proportional to 7,618.05, 11,412.50 and 5,140.67 is: 7,701.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,618.05 : 11,412.50 = 5,140.67 : x
  2. Step 2: Convert to fraction form
    7,618.05/11,412.50 = 5,140.67/x
  3. Step 3: Cross multiply
    7,618.05x = 11,412.50 × 5,140.67
  4. Step 4: Simplify right side
    7,618.05x = 58,667,813.61
  5. Step 5: Solve for x
    x = 58,667,813.61/7,618.05
  6. Step 6: Final answer
    x = 7,701.16

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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.