Home / 13,461.08-18,577.16-8,981.98

Finding the Fourth Proportional to 13,461.08, 18,577.16 and 8,981.98

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Solution

The fourth proportional to 13,461.08, 18,577.16 and 8,981.98 is: 12,395.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,461.08 : 18,577.16 = 8,981.98 : x
  2. Step 2: Convert to fraction form
    13,461.08/18,577.16 = 8,981.98/x
  3. Step 3: Cross multiply
    13,461.08x = 18,577.16 × 8,981.98
  4. Step 4: Simplify right side
    13,461.08x = 166,859,672.43
  5. Step 5: Solve for x
    x = 166,859,672.43/13,461.08
  6. Step 6: Final answer
    x = 12,395.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.