Home / 13,536.08-18,680.19-7,567.77

Finding the Fourth Proportional to 13,536.08, 18,680.19 and 7,567.77

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Solution

The fourth proportional to 13,536.08, 18,680.19 and 7,567.77 is: 10,443.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,536.08 : 18,680.19 = 7,567.77 : x
  2. Step 2: Convert to fraction form
    13,536.08/18,680.19 = 7,567.77/x
  3. Step 3: Cross multiply
    13,536.08x = 18,680.19 × 7,567.77
  4. Step 4: Simplify right side
    13,536.08x = 141,367,381.48
  5. Step 5: Solve for x
    x = 141,367,381.48/13,536.08
  6. Step 6: Final answer
    x = 10,443.75

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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.