Home / 13,465.56-18,579.36-8,159.22

Finding the Fourth Proportional to 13,465.56, 18,579.36 and 8,159.22

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Solution

The fourth proportional to 13,465.56, 18,579.36 and 8,159.22 is: 11,257.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,465.56 : 18,579.36 = 8,159.22 : x
  2. Step 2: Convert to fraction form
    13,465.56/18,579.36 = 8,159.22/x
  3. Step 3: Cross multiply
    13,465.56x = 18,579.36 × 8,159.22
  4. Step 4: Simplify right side
    13,465.56x = 151,593,085.70
  5. Step 5: Solve for x
    x = 151,593,085.70/13,465.56
  6. Step 6: Final answer
    x = 11,257.84

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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.