Home / 13,536.16-18,673.68-7,943.20

Finding the Fourth Proportional to 13,536.16, 18,673.68 and 7,943.20

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Solution

The fourth proportional to 13,536.16, 18,673.68 and 7,943.20 is: 10,957.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,536.16 : 18,673.68 = 7,943.20 : x
  2. Step 2: Convert to fraction form
    13,536.16/18,673.68 = 7,943.20/x
  3. Step 3: Cross multiply
    13,536.16x = 18,673.68 × 7,943.20
  4. Step 4: Simplify right side
    13,536.16x = 148,328,774.98
  5. Step 5: Solve for x
    x = 148,328,774.98/13,536.16
  6. Step 6: Final answer
    x = 10,957.97

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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.