Home / 13,601.78-18,770.80-7,633.93

Finding the Fourth Proportional to 13,601.78, 18,770.80 and 7,633.93

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Solution

The fourth proportional to 13,601.78, 18,770.80 and 7,633.93 is: 10,535.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,601.78 : 18,770.80 = 7,633.93 : x
  2. Step 2: Convert to fraction form
    13,601.78/18,770.80 = 7,633.93/x
  3. Step 3: Cross multiply
    13,601.78x = 18,770.80 × 7,633.93
  4. Step 4: Simplify right side
    13,601.78x = 143,294,973.24
  5. Step 5: Solve for x
    x = 143,294,973.24/13,601.78
  6. Step 6: Final answer
    x = 10,535.02

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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.