Home / 18,164.04-25,066.68-9,987.99

Finding the Fourth Proportional to 18,164.04, 25,066.68 and 9,987.99

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Solution

The fourth proportional to 18,164.04, 25,066.68 and 9,987.99 is: 13,783.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,164.04 : 25,066.68 = 9,987.99 : x
  2. Step 2: Convert to fraction form
    18,164.04/25,066.68 = 9,987.99/x
  3. Step 3: Cross multiply
    18,164.04x = 25,066.68 × 9,987.99
  4. Step 4: Simplify right side
    18,164.04x = 250,365,749.17
  5. Step 5: Solve for x
    x = 250,365,749.17/18,164.04
  6. Step 6: Final answer
    x = 13,783.59

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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.