Home / 13,047.25-18,004.96-7,381.77

Finding the Fourth Proportional to 13,047.25, 18,004.96 and 7,381.77

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Solution

The fourth proportional to 13,047.25, 18,004.96 and 7,381.77 is: 10,186.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,047.25 : 18,004.96 = 7,381.77 : x
  2. Step 2: Convert to fraction form
    13,047.25/18,004.96 = 7,381.77/x
  3. Step 3: Cross multiply
    13,047.25x = 18,004.96 × 7,381.77
  4. Step 4: Simplify right side
    13,047.25x = 132,908,473.58
  5. Step 5: Solve for x
    x = 132,908,473.58/13,047.25
  6. Step 6: Final answer
    x = 10,186.70

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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.