Home / 13,536.90-20,309.45-6,426.59

Finding the Fourth Proportional to 13,536.90, 20,309.45 and 6,426.59

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Solution

The fourth proportional to 13,536.90, 20,309.45 and 6,426.59 is: 9,641.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,536.90 : 20,309.45 = 6,426.59 : x
  2. Step 2: Convert to fraction form
    13,536.90/20,309.45 = 6,426.59/x
  3. Step 3: Cross multiply
    13,536.90x = 20,309.45 × 6,426.59
  4. Step 4: Simplify right side
    13,536.90x = 130,520,374.60
  5. Step 5: Solve for x
    x = 130,520,374.60/13,536.90
  6. Step 6: Final answer
    x = 9,641.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.