Home / 7,459.76-11,178.12-4,718

Finding the Fourth Proportional to 7,459.76, 11,178.12 and 4,718

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Solution

The fourth proportional to 7,459.76, 11,178.12 and 4,718 is: 7,069.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,459.76 : 11,178.12 = 4,718 : x
  2. Step 2: Convert to fraction form
    7,459.76/11,178.12 = 4,718/x
  3. Step 3: Cross multiply
    7,459.76x = 11,178.12 × 4,718
  4. Step 4: Simplify right side
    7,459.76x = 52,738,370.16
  5. Step 5: Solve for x
    x = 52,738,370.16/7,459.76
  6. Step 6: Final answer
    x = 7,069.71

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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.