Home / 10,354.50-15,533.38-3,430.62

Finding the Fourth Proportional to 10,354.50, 15,533.38 and 3,430.62

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Solution

The fourth proportional to 10,354.50, 15,533.38 and 3,430.62 is: 5,146.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,354.50 : 15,533.38 = 3,430.62 : x
  2. Step 2: Convert to fraction form
    10,354.50/15,533.38 = 3,430.62/x
  3. Step 3: Cross multiply
    10,354.50x = 15,533.38 × 3,430.62
  4. Step 4: Simplify right side
    10,354.50x = 53,289,124.10
  5. Step 5: Solve for x
    x = 53,289,124.10/10,354.50
  6. Step 6: Final answer
    x = 5,146.47

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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.