Home / 8,318.30-12,461.31-6,553.98

Finding the Fourth Proportional to 8,318.30, 12,461.31 and 6,553.98

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Solution

The fourth proportional to 8,318.30, 12,461.31 and 6,553.98 is: 9,818.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,318.30 : 12,461.31 = 6,553.98 : x
  2. Step 2: Convert to fraction form
    8,318.30/12,461.31 = 6,553.98/x
  3. Step 3: Cross multiply
    8,318.30x = 12,461.31 × 6,553.98
  4. Step 4: Simplify right side
    8,318.30x = 81,671,176.51
  5. Step 5: Solve for x
    x = 81,671,176.51/8,318.30
  6. Step 6: Final answer
    x = 9,818.26

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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.