Home / 13,293.12-18,343.44-7,704.48

Finding the Fourth Proportional to 13,293.12, 18,343.44 and 7,704.48

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Solution

The fourth proportional to 13,293.12, 18,343.44 and 7,704.48 is: 10,631.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,293.12 : 18,343.44 = 7,704.48 : x
  2. Step 2: Convert to fraction form
    13,293.12/18,343.44 = 7,704.48/x
  3. Step 3: Cross multiply
    13,293.12x = 18,343.44 × 7,704.48
  4. Step 4: Simplify right side
    13,293.12x = 141,326,666.61
  5. Step 5: Solve for x
    x = 141,326,666.61/13,293.12
  6. Step 6: Final answer
    x = 10,631.56

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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.