Home / 8,623.60-12,935.40-6,677.20

Finding the Fourth Proportional to 8,623.60, 12,935.40 and 6,677.20

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Solution

The fourth proportional to 8,623.60, 12,935.40 and 6,677.20 is: 10,015.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,623.60 : 12,935.40 = 6,677.20 : x
  2. Step 2: Convert to fraction form
    8,623.60/12,935.40 = 6,677.20/x
  3. Step 3: Cross multiply
    8,623.60x = 12,935.40 × 6,677.20
  4. Step 4: Simplify right side
    8,623.60x = 86,372,252.88
  5. Step 5: Solve for x
    x = 86,372,252.88/8,623.60
  6. Step 6: Final answer
    x = 10,015.80

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1.5x scale

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.