Home / 13,093.11-18,068.37-7,124.78

Finding the Fourth Proportional to 13,093.11, 18,068.37 and 7,124.78

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Solution

The fourth proportional to 13,093.11, 18,068.37 and 7,124.78 is: 9,832.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,093.11 : 18,068.37 = 7,124.78 : x
  2. Step 2: Convert to fraction form
    13,093.11/18,068.37 = 7,124.78/x
  3. Step 3: Cross multiply
    13,093.11x = 18,068.37 × 7,124.78
  4. Step 4: Simplify right side
    13,093.11x = 128,733,180.28
  5. Step 5: Solve for x
    x = 128,733,180.28/13,093.11
  6. Step 6: Final answer
    x = 9,832.13

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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.