Home / 18,459.89-25,465.78-12,083.67

Finding the Fourth Proportional to 18,459.89, 25,465.78 and 12,083.67

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Solution

The fourth proportional to 18,459.89, 25,465.78 and 12,083.67 is: 16,669.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,459.89 : 25,465.78 = 12,083.67 : x
  2. Step 2: Convert to fraction form
    18,459.89/25,465.78 = 12,083.67/x
  3. Step 3: Cross multiply
    18,459.89x = 25,465.78 × 12,083.67
  4. Step 4: Simplify right side
    18,459.89x = 307,720,081.81
  5. Step 5: Solve for x
    x = 307,720,081.81/18,459.89
  6. Step 6: Final answer
    x = 16,669.66

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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.