Home / 10,442.68-15,664.08-4,118.20

Finding the Fourth Proportional to 10,442.68, 15,664.08 and 4,118.20

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Solution

The fourth proportional to 10,442.68, 15,664.08 and 4,118.20 is: 6,177.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,442.68 : 15,664.08 = 4,118.20 : x
  2. Step 2: Convert to fraction form
    10,442.68/15,664.08 = 4,118.20/x
  3. Step 3: Cross multiply
    10,442.68x = 15,664.08 × 4,118.20
  4. Step 4: Simplify right side
    10,442.68x = 64,507,814.26
  5. Step 5: Solve for x
    x = 64,507,814.26/10,442.68
  6. Step 6: Final answer
    x = 6,177.32

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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.