Home / 13,245.32-18,277.80-7,937.48

Finding the Fourth Proportional to 13,245.32, 18,277.80 and 7,937.48

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Solution

The fourth proportional to 13,245.32, 18,277.80 and 7,937.48 is: 10,953.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,245.32 : 18,277.80 = 7,937.48 : x
  2. Step 2: Convert to fraction form
    13,245.32/18,277.80 = 7,937.48/x
  3. Step 3: Cross multiply
    13,245.32x = 18,277.80 × 7,937.48
  4. Step 4: Simplify right side
    13,245.32x = 145,079,671.94
  5. Step 5: Solve for x
    x = 145,079,671.94/13,245.32
  6. Step 6: Final answer
    x = 10,953.28

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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.