Home / 10,442.61-15,664.34-3,423.02

Finding the Fourth Proportional to 10,442.61, 15,664.34 and 3,423.02

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Solution

The fourth proportional to 10,442.61, 15,664.34 and 3,423.02 is: 5,134.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,442.61 : 15,664.34 = 3,423.02 : x
  2. Step 2: Convert to fraction form
    10,442.61/15,664.34 = 3,423.02/x
  3. Step 3: Cross multiply
    10,442.61x = 15,664.34 × 3,423.02
  4. Step 4: Simplify right side
    10,442.61x = 53,619,349.11
  5. Step 5: Solve for x
    x = 53,619,349.11/10,442.61
  6. Step 6: Final answer
    x = 5,134.67

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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.