Home / 8,710.60-12,020.70-4,731.72

Finding the Fourth Proportional to 8,710.60, 12,020.70 and 4,731.72

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Solution

The fourth proportional to 8,710.60, 12,020.70 and 4,731.72 is: 6,529.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,710.60 : 12,020.70 = 4,731.72 : x
  2. Step 2: Convert to fraction form
    8,710.60/12,020.70 = 4,731.72/x
  3. Step 3: Cross multiply
    8,710.60x = 12,020.70 × 4,731.72
  4. Step 4: Simplify right side
    8,710.60x = 56,878,586.60
  5. Step 5: Solve for x
    x = 56,878,586.60/8,710.60
  6. Step 6: Final answer
    x = 6,529.81

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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.