Home / 18,708.16-25,820.56-11,154.96

Finding the Fourth Proportional to 18,708.16, 25,820.56 and 11,154.96

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Solution

The fourth proportional to 18,708.16, 25,820.56 and 11,154.96 is: 15,395.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,708.16 : 25,820.56 = 11,154.96 : x
  2. Step 2: Convert to fraction form
    18,708.16/25,820.56 = 11,154.96/x
  3. Step 3: Cross multiply
    18,708.16x = 25,820.56 × 11,154.96
  4. Step 4: Simplify right side
    18,708.16x = 288,027,189.26
  5. Step 5: Solve for x
    x = 288,027,189.26/18,708.16
  6. Step 6: Final answer
    x = 15,395.80

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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.