Home / 8,701.49-13,041.53-3,431.21

Finding the Fourth Proportional to 8,701.49, 13,041.53 and 3,431.21

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Solution

The fourth proportional to 8,701.49, 13,041.53 and 3,431.21 is: 5,142.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,701.49 : 13,041.53 = 3,431.21 : x
  2. Step 2: Convert to fraction form
    8,701.49/13,041.53 = 3,431.21/x
  3. Step 3: Cross multiply
    8,701.49x = 13,041.53 × 3,431.21
  4. Step 4: Simplify right side
    8,701.49x = 44,748,145.79
  5. Step 5: Solve for x
    x = 44,748,145.79/8,701.49
  6. Step 6: Final answer
    x = 5,142.59

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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.