Home / 13,101.12-18,079.88-7,436.28

Finding the Fourth Proportional to 13,101.12, 18,079.88 and 7,436.28

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Solution

The fourth proportional to 13,101.12, 18,079.88 and 7,436.28 is: 10,262.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,101.12 : 18,079.88 = 7,436.28 : x
  2. Step 2: Convert to fraction form
    13,101.12/18,079.88 = 7,436.28/x
  3. Step 3: Cross multiply
    13,101.12x = 18,079.88 × 7,436.28
  4. Step 4: Simplify right side
    13,101.12x = 134,447,050.05
  5. Step 5: Solve for x
    x = 134,447,050.05/13,101.12
  6. Step 6: Final answer
    x = 10,262.26

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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.