Home / 8,689.40-13,030.86-3,493.52

Finding the Fourth Proportional to 8,689.40, 13,030.86 and 3,493.52

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Solution

The fourth proportional to 8,689.40, 13,030.86 and 3,493.52 is: 5,238.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,689.40 : 13,030.86 = 3,493.52 : x
  2. Step 2: Convert to fraction form
    8,689.40/13,030.86 = 3,493.52/x
  3. Step 3: Cross multiply
    8,689.40x = 13,030.86 × 3,493.52
  4. Step 4: Simplify right side
    8,689.40x = 45,523,570.03
  5. Step 5: Solve for x
    x = 45,523,570.03/8,689.40
  6. Step 6: Final answer
    x = 5,238.98

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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.