Home / 10,389.12-15,580.44-3,462

Finding the Fourth Proportional to 10,389.12, 15,580.44 and 3,462

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Solution

The fourth proportional to 10,389.12, 15,580.44 and 3,462 is: 5,191.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,389.12 : 15,580.44 = 3,462 : x
  2. Step 2: Convert to fraction form
    10,389.12/15,580.44 = 3,462/x
  3. Step 3: Cross multiply
    10,389.12x = 15,580.44 × 3,462
  4. Step 4: Simplify right side
    10,389.12x = 53,939,483.28
  5. Step 5: Solve for x
    x = 53,939,483.28/10,389.12
  6. Step 6: Final answer
    x = 5,191.92

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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.