Home / 18,308.86-25,266.63-11,231.10

Finding the Fourth Proportional to 18,308.86, 25,266.63 and 11,231.10

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Solution

The fourth proportional to 18,308.86, 25,266.63 and 11,231.10 is: 15,499.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,308.86 : 25,266.63 = 11,231.10 : x
  2. Step 2: Convert to fraction form
    18,308.86/25,266.63 = 11,231.10/x
  3. Step 3: Cross multiply
    18,308.86x = 25,266.63 × 11,231.10
  4. Step 4: Simplify right side
    18,308.86x = 283,772,048.19
  5. Step 5: Solve for x
    x = 283,772,048.19/18,308.86
  6. Step 6: Final answer
    x = 15,499.17

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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.