Home / 13,741.56-18,962.56-7,772.88

Finding the Fourth Proportional to 13,741.56, 18,962.56 and 7,772.88

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Solution

The fourth proportional to 13,741.56, 18,962.56 and 7,772.88 is: 10,726.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,741.56 : 18,962.56 = 7,772.88 : x
  2. Step 2: Convert to fraction form
    13,741.56/18,962.56 = 7,772.88/x
  3. Step 3: Cross multiply
    13,741.56x = 18,962.56 × 7,772.88
  4. Step 4: Simplify right side
    13,741.56x = 147,393,703.37
  5. Step 5: Solve for x
    x = 147,393,703.37/13,741.56
  6. Step 6: Final answer
    x = 10,726.13

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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.