Home / 13,012.35-17,952.21-8,538.59

Finding the Fourth Proportional to 13,012.35, 17,952.21 and 8,538.59

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Solution

The fourth proportional to 13,012.35, 17,952.21 and 8,538.59 is: 11,780.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,012.35 : 17,952.21 = 8,538.59 : x
  2. Step 2: Convert to fraction form
    13,012.35/17,952.21 = 8,538.59/x
  3. Step 3: Cross multiply
    13,012.35x = 17,952.21 × 8,538.59
  4. Step 4: Simplify right side
    13,012.35x = 153,286,471.02
  5. Step 5: Solve for x
    x = 153,286,471.02/13,012.35
  6. Step 6: Final answer
    x = 11,780.08

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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.