Home / 7,013.40-10,522.08-3,118.68

Finding the Fourth Proportional to 7,013.40, 10,522.08 and 3,118.68

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Solution

The fourth proportional to 7,013.40, 10,522.08 and 3,118.68 is: 4,678.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,013.40 : 10,522.08 = 3,118.68 : x
  2. Step 2: Convert to fraction form
    7,013.40/10,522.08 = 3,118.68/x
  3. Step 3: Cross multiply
    7,013.40x = 10,522.08 × 3,118.68
  4. Step 4: Simplify right side
    7,013.40x = 32,815,000.45
  5. Step 5: Solve for x
    x = 32,815,000.45/7,013.40
  6. Step 6: Final answer
    x = 4,678.90

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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.