Home / 6,913.56-9,539.10-3,929.16

Finding the Fourth Proportional to 6,913.56, 9,539.10 and 3,929.16

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Solution

The fourth proportional to 6,913.56, 9,539.10 and 3,929.16 is: 5,421.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,913.56 : 9,539.10 = 3,929.16 : x
  2. Step 2: Convert to fraction form
    6,913.56/9,539.10 = 3,929.16/x
  3. Step 3: Cross multiply
    6,913.56x = 9,539.10 × 3,929.16
  4. Step 4: Simplify right side
    6,913.56x = 37,480,650.16
  5. Step 5: Solve for x
    x = 37,480,650.16/6,913.56
  6. Step 6: Final answer
    x = 5,421.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.