Home / 8,970.66-13,455.88-3,127.25

Finding the Fourth Proportional to 8,970.66, 13,455.88 and 3,127.25

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Solution

The fourth proportional to 8,970.66, 13,455.88 and 3,127.25 is: 4,690.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,970.66 : 13,455.88 = 3,127.25 : x
  2. Step 2: Convert to fraction form
    8,970.66/13,455.88 = 3,127.25/x
  3. Step 3: Cross multiply
    8,970.66x = 13,455.88 × 3,127.25
  4. Step 4: Simplify right side
    8,970.66x = 42,079,817.81
  5. Step 5: Solve for x
    x = 42,079,817.81/8,970.66
  6. Step 6: Final answer
    x = 4,690.83

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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.