Home / 14,579.21-21,869.15-5,219.87

Finding the Fourth Proportional to 14,579.21, 21,869.15 and 5,219.87

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Solution

The fourth proportional to 14,579.21, 21,869.15 and 5,219.87 is: 7,829.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,579.21 : 21,869.15 = 5,219.87 : x
  2. Step 2: Convert to fraction form
    14,579.21/21,869.15 = 5,219.87/x
  3. Step 3: Cross multiply
    14,579.21x = 21,869.15 × 5,219.87
  4. Step 4: Simplify right side
    14,579.21x = 114,153,984.57
  5. Step 5: Solve for x
    x = 114,153,984.57/14,579.21
  6. Step 6: Final answer
    x = 7,829.92

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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.