Home / 13,465.36-18,579.18-8,085.34

Finding the Fourth Proportional to 13,465.36, 18,579.18 and 8,085.34

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Solution

The fourth proportional to 13,465.36, 18,579.18 and 8,085.34 is: 11,155.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,465.36 : 18,579.18 = 8,085.34 : x
  2. Step 2: Convert to fraction form
    13,465.36/18,579.18 = 8,085.34/x
  3. Step 3: Cross multiply
    13,465.36x = 18,579.18 × 8,085.34
  4. Step 4: Simplify right side
    13,465.36x = 150,218,987.22
  5. Step 5: Solve for x
    x = 150,218,987.22/13,465.36
  6. Step 6: Final answer
    x = 11,155.96

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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.