Home / 12,259.96-18,358.53-8,087.29

Finding the Fourth Proportional to 12,259.96, 18,358.53 and 8,087.29

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Solution

The fourth proportional to 12,259.96, 18,358.53 and 8,087.29 is: 12,110.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,259.96 : 18,358.53 = 8,087.29 : x
  2. Step 2: Convert to fraction form
    12,259.96/18,358.53 = 8,087.29/x
  3. Step 3: Cross multiply
    12,259.96x = 18,358.53 × 8,087.29
  4. Step 4: Simplify right side
    12,259.96x = 148,470,756.08
  5. Step 5: Solve for x
    x = 148,470,756.08/12,259.96
  6. Step 6: Final answer
    x = 12,110.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.