Home / 13,536.08-18,679.86-7,874.18

Finding the Fourth Proportional to 13,536.08, 18,679.86 and 7,874.18

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Solution

The fourth proportional to 13,536.08, 18,679.86 and 7,874.18 is: 10,866.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,536.08 : 18,679.86 = 7,874.18 : x
  2. Step 2: Convert to fraction form
    13,536.08/18,679.86 = 7,874.18/x
  3. Step 3: Cross multiply
    13,536.08x = 18,679.86 × 7,874.18
  4. Step 4: Simplify right side
    13,536.08x = 147,088,580.01
  5. Step 5: Solve for x
    x = 147,088,580.01/13,536.08
  6. Step 6: Final answer
    x = 10,866.41

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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.