Home / 14,490.60-19,989.06-8,519.40

Finding the Fourth Proportional to 14,490.60, 19,989.06 and 8,519.40

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Solution

The fourth proportional to 14,490.60, 19,989.06 and 8,519.40 is: 11,752.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,490.60 : 19,989.06 = 8,519.40 : x
  2. Step 2: Convert to fraction form
    14,490.60/19,989.06 = 8,519.40/x
  3. Step 3: Cross multiply
    14,490.60x = 19,989.06 × 8,519.40
  4. Step 4: Simplify right side
    14,490.60x = 170,294,797.76
  5. Step 5: Solve for x
    x = 170,294,797.76/14,490.60
  6. Step 6: Final answer
    x = 11,752.09

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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.