Home / 8,689.04-13,051.02-5,185.89

Finding the Fourth Proportional to 8,689.04, 13,051.02 and 5,185.89

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Solution

The fourth proportional to 8,689.04, 13,051.02 and 5,185.89 is: 7,789.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,689.04 : 13,051.02 = 5,185.89 : x
  2. Step 2: Convert to fraction form
    8,689.04/13,051.02 = 5,185.89/x
  3. Step 3: Cross multiply
    8,689.04x = 13,051.02 × 5,185.89
  4. Step 4: Simplify right side
    8,689.04x = 67,681,128.18
  5. Step 5: Solve for x
    x = 67,681,128.18/8,689.04
  6. Step 6: Final answer
    x = 7,789.25

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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.