Home / 10,355.81-15,533.75-4,115.42

Finding the Fourth Proportional to 10,355.81, 15,533.75 and 4,115.42

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Solution

The fourth proportional to 10,355.81, 15,533.75 and 4,115.42 is: 6,173.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,355.81 : 15,533.75 = 4,115.42 : x
  2. Step 2: Convert to fraction form
    10,355.81/15,533.75 = 4,115.42/x
  3. Step 3: Cross multiply
    10,355.81x = 15,533.75 × 4,115.42
  4. Step 4: Simplify right side
    10,355.81x = 63,927,905.43
  5. Step 5: Solve for x
    x = 63,927,905.43/10,355.81
  6. Step 6: Final answer
    x = 6,173.14

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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.