Home / 8,368.46-12,558.98-3,108.32

Finding the Fourth Proportional to 8,368.46, 12,558.98 and 3,108.32

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Solution

The fourth proportional to 8,368.46, 12,558.98 and 3,108.32 is: 4,664.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,368.46 : 12,558.98 = 3,108.32 : x
  2. Step 2: Convert to fraction form
    8,368.46/12,558.98 = 3,108.32/x
  3. Step 3: Cross multiply
    8,368.46x = 12,558.98 × 3,108.32
  4. Step 4: Simplify right side
    8,368.46x = 39,037,328.71
  5. Step 5: Solve for x
    x = 39,037,328.71/8,368.46
  6. Step 6: Final answer
    x = 4,664.82

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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.