Home / 8,312.16-12,464.59-3,114.39

Finding the Fourth Proportional to 8,312.16, 12,464.59 and 3,114.39

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Solution

The fourth proportional to 8,312.16, 12,464.59 and 3,114.39 is: 4,670.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,312.16 : 12,464.59 = 3,114.39 : x
  2. Step 2: Convert to fraction form
    8,312.16/12,464.59 = 3,114.39/x
  3. Step 3: Cross multiply
    8,312.16x = 12,464.59 × 3,114.39
  4. Step 4: Simplify right side
    8,312.16x = 38,819,594.45
  5. Step 5: Solve for x
    x = 38,819,594.45/8,312.16
  6. Step 6: Final answer
    x = 4,670.22

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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.