Home / 18,742.15-25,864.48-11,187.01

Finding the Fourth Proportional to 18,742.15, 25,864.48 and 11,187.01

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Solution

The fourth proportional to 18,742.15, 25,864.48 and 11,187.01 is: 15,438.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,742.15 : 25,864.48 = 11,187.01 : x
  2. Step 2: Convert to fraction form
    18,742.15/25,864.48 = 11,187.01/x
  3. Step 3: Cross multiply
    18,742.15x = 25,864.48 × 11,187.01
  4. Step 4: Simplify right side
    18,742.15x = 289,346,011.15
  5. Step 5: Solve for x
    x = 289,346,011.15/18,742.15
  6. Step 6: Final answer
    x = 15,438.25

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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.