Home / 14,599.36-20,139.90-8,628.14

Finding the Fourth Proportional to 14,599.36, 20,139.90 and 8,628.14

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Solution

The fourth proportional to 14,599.36, 20,139.90 and 8,628.14 is: 11,902.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,599.36 : 20,139.90 = 8,628.14 : x
  2. Step 2: Convert to fraction form
    14,599.36/20,139.90 = 8,628.14/x
  3. Step 3: Cross multiply
    14,599.36x = 20,139.90 × 8,628.14
  4. Step 4: Simplify right side
    14,599.36x = 173,769,876.79
  5. Step 5: Solve for x
    x = 173,769,876.79/14,599.36
  6. Step 6: Final answer
    x = 11,902.57

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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.