Home / 18,615.06-25,688.34-10,116.96

Finding the Fourth Proportional to 18,615.06, 25,688.34 and 10,116.96

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Solution

The fourth proportional to 18,615.06, 25,688.34 and 10,116.96 is: 13,961.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,615.06 : 25,688.34 = 10,116.96 : x
  2. Step 2: Convert to fraction form
    18,615.06/25,688.34 = 10,116.96/x
  3. Step 3: Cross multiply
    18,615.06x = 25,688.34 × 10,116.96
  4. Step 4: Simplify right side
    18,615.06x = 259,887,908.25
  5. Step 5: Solve for x
    x = 259,887,908.25/18,615.06
  6. Step 6: Final answer
    x = 13,961.16

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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.