Home / 8,681.12-13,020.44-3,133.70

Finding the Fourth Proportional to 8,681.12, 13,020.44 and 3,133.70

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Solution

The fourth proportional to 8,681.12, 13,020.44 and 3,133.70 is: 4,700.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,681.12 : 13,020.44 = 3,133.70 : x
  2. Step 2: Convert to fraction form
    8,681.12/13,020.44 = 3,133.70/x
  3. Step 3: Cross multiply
    8,681.12x = 13,020.44 × 3,133.70
  4. Step 4: Simplify right side
    8,681.12x = 40,802,152.83
  5. Step 5: Solve for x
    x = 40,802,152.83/8,681.12
  6. Step 6: Final answer
    x = 4,700.10

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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.