Home / 14,487.60-19,997.64-8,518.98

Finding the Fourth Proportional to 14,487.60, 19,997.64 and 8,518.98

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Solution

The fourth proportional to 14,487.60, 19,997.64 and 8,518.98 is: 11,758.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,487.60 : 19,997.64 = 8,518.98 : x
  2. Step 2: Convert to fraction form
    14,487.60/19,997.64 = 8,518.98/x
  3. Step 3: Cross multiply
    14,487.60x = 19,997.64 × 8,518.98
  4. Step 4: Simplify right side
    14,487.60x = 170,359,495.21
  5. Step 5: Solve for x
    x = 170,359,495.21/14,487.60
  6. Step 6: Final answer
    x = 11,758.99

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1.5x scale

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.