Home / 8,477.58-12,716.93-2,931.46

Finding the Fourth Proportional to 8,477.58, 12,716.93 and 2,931.46

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Solution

The fourth proportional to 8,477.58, 12,716.93 and 2,931.46 is: 4,397.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,477.58 : 12,716.93 = 2,931.46 : x
  2. Step 2: Convert to fraction form
    8,477.58/12,716.93 = 2,931.46/x
  3. Step 3: Cross multiply
    8,477.58x = 12,716.93 × 2,931.46
  4. Step 4: Simplify right side
    8,477.58x = 37,279,171.62
  5. Step 5: Solve for x
    x = 37,279,171.62/8,477.58
  6. Step 6: Final answer
    x = 4,397.38

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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.