Home / 8,710.36-12,020.39-4,731.55

Finding the Fourth Proportional to 8,710.36, 12,020.39 and 4,731.55

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Solution

The fourth proportional to 8,710.36, 12,020.39 and 4,731.55 is: 6,529.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,710.36 : 12,020.39 = 4,731.55 : x
  2. Step 2: Convert to fraction form
    8,710.36/12,020.39 = 4,731.55/x
  3. Step 3: Cross multiply
    8,710.36x = 12,020.39 × 4,731.55
  4. Step 4: Simplify right side
    8,710.36x = 56,875,052.65
  5. Step 5: Solve for x
    x = 56,875,052.65/8,710.36
  6. Step 6: Final answer
    x = 6,529.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.