Home / 13,481.02-18,613.29-9,456.40

Finding the Fourth Proportional to 13,481.02, 18,613.29 and 9,456.40

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Solution

The fourth proportional to 13,481.02, 18,613.29 and 9,456.40 is: 13,056.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,481.02 : 18,613.29 = 9,456.40 : x
  2. Step 2: Convert to fraction form
    13,481.02/18,613.29 = 9,456.40/x
  3. Step 3: Cross multiply
    13,481.02x = 18,613.29 × 9,456.40
  4. Step 4: Simplify right side
    13,481.02x = 176,014,715.56
  5. Step 5: Solve for x
    x = 176,014,715.56/13,481.02
  6. Step 6: Final answer
    x = 13,056.48

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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.