Home / 10,946.79-16,420.18-3,551.25

Finding the Fourth Proportional to 10,946.79, 16,420.18 and 3,551.25

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Solution

The fourth proportional to 10,946.79, 16,420.18 and 3,551.25 is: 5,326.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,946.79 : 16,420.18 = 3,551.25 : x
  2. Step 2: Convert to fraction form
    10,946.79/16,420.18 = 3,551.25/x
  3. Step 3: Cross multiply
    10,946.79x = 16,420.18 × 3,551.25
  4. Step 4: Simplify right side
    10,946.79x = 58,312,147.76
  5. Step 5: Solve for x
    x = 58,312,147.76/10,946.79
  6. Step 6: Final answer
    x = 5,326.87

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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.