Home / 13,100.68-18,079.77-7,436.35

Finding the Fourth Proportional to 13,100.68, 18,079.77 and 7,436.35

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Solution

The fourth proportional to 13,100.68, 18,079.77 and 7,436.35 is: 10,262.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,100.68 : 18,079.77 = 7,436.35 : x
  2. Step 2: Convert to fraction form
    13,100.68/18,079.77 = 7,436.35/x
  3. Step 3: Cross multiply
    13,100.68x = 18,079.77 × 7,436.35
  4. Step 4: Simplify right side
    13,100.68x = 134,447,497.64
  5. Step 5: Solve for x
    x = 134,447,497.64/13,100.68
  6. Step 6: Final answer
    x = 10,262.64

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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.