Home / 10,430.21-15,647.75-3,410.55

Finding the Fourth Proportional to 10,430.21, 15,647.75 and 3,410.55

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Solution

The fourth proportional to 10,430.21, 15,647.75 and 3,410.55 is: 5,116.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,430.21 : 15,647.75 = 3,410.55 : x
  2. Step 2: Convert to fraction form
    10,430.21/15,647.75 = 3,410.55/x
  3. Step 3: Cross multiply
    10,430.21x = 15,647.75 × 3,410.55
  4. Step 4: Simplify right side
    10,430.21x = 53,367,416.71
  5. Step 5: Solve for x
    x = 53,367,416.71/10,430.21
  6. Step 6: Final answer
    x = 5,116.62

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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.