Home / 14,579.10-20,116.89-8,290.26

Finding the Fourth Proportional to 14,579.10, 20,116.89 and 8,290.26

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Solution

The fourth proportional to 14,579.10, 20,116.89 and 8,290.26 is: 11,439.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,579.10 : 20,116.89 = 8,290.26 : x
  2. Step 2: Convert to fraction form
    14,579.10/20,116.89 = 8,290.26/x
  3. Step 3: Cross multiply
    14,579.10x = 20,116.89 × 8,290.26
  4. Step 4: Simplify right side
    14,579.10x = 166,774,248.49
  5. Step 5: Solve for x
    x = 166,774,248.49/14,579.10
  6. Step 6: Final answer
    x = 11,439.27

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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.