Home / 13,523.86-18,663.75-7,555.96

Finding the Fourth Proportional to 13,523.86, 18,663.75 and 7,555.96

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Solution

The fourth proportional to 13,523.86, 18,663.75 and 7,555.96 is: 10,427.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,523.86 : 18,663.75 = 7,555.96 : x
  2. Step 2: Convert to fraction form
    13,523.86/18,663.75 = 7,555.96/x
  3. Step 3: Cross multiply
    13,523.86x = 18,663.75 × 7,555.96
  4. Step 4: Simplify right side
    13,523.86x = 141,022,548.45
  5. Step 5: Solve for x
    x = 141,022,548.45/13,523.86
  6. Step 6: Final answer
    x = 10,427.68

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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.