Home / 10,430.48-15,636.80-5,163.06

Finding the Fourth Proportional to 10,430.48, 15,636.80 and 5,163.06

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Solution

The fourth proportional to 10,430.48, 15,636.80 and 5,163.06 is: 7,740.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,430.48 : 15,636.80 = 5,163.06 : x
  2. Step 2: Convert to fraction form
    10,430.48/15,636.80 = 5,163.06/x
  3. Step 3: Cross multiply
    10,430.48x = 15,636.80 × 5,163.06
  4. Step 4: Simplify right side
    10,430.48x = 80,733,736.61
  5. Step 5: Solve for x
    x = 80,733,736.61/10,430.48
  6. Step 6: Final answer
    x = 7,740.17

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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.