Home / 10,289.14-15,421.40-4,736.90

Finding the Fourth Proportional to 10,289.14, 15,421.40 and 4,736.90

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Solution

The fourth proportional to 10,289.14, 15,421.40 and 4,736.90 is: 7,099.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,289.14 : 15,421.40 = 4,736.90 : x
  2. Step 2: Convert to fraction form
    10,289.14/15,421.40 = 4,736.90/x
  3. Step 3: Cross multiply
    10,289.14x = 15,421.40 × 4,736.90
  4. Step 4: Simplify right side
    10,289.14x = 73,049,564.40
  5. Step 5: Solve for x
    x = 73,049,564.40/10,289.14
  6. Step 6: Final answer
    x = 7,099.68

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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.