Home / 10,985.11-16,472.69-3,486.51

Finding the Fourth Proportional to 10,985.11, 16,472.69 and 3,486.51

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Solution

The fourth proportional to 10,985.11, 16,472.69 and 3,486.51 is: 5,228.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,985.11 : 16,472.69 = 3,486.51 : x
  2. Step 2: Convert to fraction form
    10,985.11/16,472.69 = 3,486.51/x
  3. Step 3: Cross multiply
    10,985.11x = 16,472.69 × 3,486.51
  4. Step 4: Simplify right side
    10,985.11x = 57,432,136.64
  5. Step 5: Solve for x
    x = 57,432,136.64/10,985.11
  6. Step 6: Final answer
    x = 5,228.18

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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.