Home / 10,477.22-15,720.96-4,930.34

Finding the Fourth Proportional to 10,477.22, 15,720.96 and 4,930.34

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Solution

The fourth proportional to 10,477.22, 15,720.96 and 4,930.34 is: 7,397.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,477.22 : 15,720.96 = 4,930.34 : x
  2. Step 2: Convert to fraction form
    10,477.22/15,720.96 = 4,930.34/x
  3. Step 3: Cross multiply
    10,477.22x = 15,720.96 × 4,930.34
  4. Step 4: Simplify right side
    10,477.22x = 77,509,677.93
  5. Step 5: Solve for x
    x = 77,509,677.93/10,477.22
  6. Step 6: Final answer
    x = 7,397.92

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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.