Home / 13,536.13-18,680.45-7,567.80

Finding the Fourth Proportional to 13,536.13, 18,680.45 and 7,567.80

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Solution

The fourth proportional to 13,536.13, 18,680.45 and 7,567.80 is: 10,443.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,536.13 : 18,680.45 = 7,567.80 : x
  2. Step 2: Convert to fraction form
    13,536.13/18,680.45 = 7,567.80/x
  3. Step 3: Cross multiply
    13,536.13x = 18,680.45 × 7,567.80
  4. Step 4: Simplify right side
    13,536.13x = 141,369,909.51
  5. Step 5: Solve for x
    x = 141,369,909.51/13,536.13
  6. Step 6: Final answer
    x = 10,443.89

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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.