Home / 8,656.12-12,989.40-3,461.50

Finding the Fourth Proportional to 8,656.12, 12,989.40 and 3,461.50

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Solution

The fourth proportional to 8,656.12, 12,989.40 and 3,461.50 is: 5,194.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,656.12 : 12,989.40 = 3,461.50 : x
  2. Step 2: Convert to fraction form
    8,656.12/12,989.40 = 3,461.50/x
  3. Step 3: Cross multiply
    8,656.12x = 12,989.40 × 3,461.50
  4. Step 4: Simplify right side
    8,656.12x = 44,962,808.10
  5. Step 5: Solve for x
    x = 44,962,808.10/8,656.12
  6. Step 6: Final answer
    x = 5,194.34

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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.