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Finding the Fourth Proportional to 8,710.47, 12,020.44 and 4,731.58

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Solution

The fourth proportional to 8,710.47, 12,020.44 and 4,731.58 is: 6,529.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,710.47 : 12,020.44 = 4,731.58 : x
  2. Step 2: Convert to fraction form
    8,710.47/12,020.44 = 4,731.58/x
  3. Step 3: Cross multiply
    8,710.47x = 12,020.44 × 4,731.58
  4. Step 4: Simplify right side
    8,710.47x = 56,875,628.20
  5. Step 5: Solve for x
    x = 56,875,628.20/8,710.47
  6. Step 6: Final answer
    x = 6,529.57

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