Home / 13,530.93-18,660.57-8,495.61

Finding the Fourth Proportional to 13,530.93, 18,660.57 and 8,495.61

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Solution

The fourth proportional to 13,530.93, 18,660.57 and 8,495.61 is: 11,716.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,530.93 : 18,660.57 = 8,495.61 : x
  2. Step 2: Convert to fraction form
    13,530.93/18,660.57 = 8,495.61/x
  3. Step 3: Cross multiply
    13,530.93x = 18,660.57 × 8,495.61
  4. Step 4: Simplify right side
    13,530.93x = 158,532,925.10
  5. Step 5: Solve for x
    x = 158,532,925.10/13,530.93
  6. Step 6: Final answer
    x = 11,716.34

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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.