Home / 12,512.84-18,769.28-5,117.30

Finding the Fourth Proportional to 12,512.84, 18,769.28 and 5,117.30

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Solution

The fourth proportional to 12,512.84, 18,769.28 and 5,117.30 is: 7,675.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,512.84 : 18,769.28 = 5,117.30 : x
  2. Step 2: Convert to fraction form
    12,512.84/18,769.28 = 5,117.30/x
  3. Step 3: Cross multiply
    12,512.84x = 18,769.28 × 5,117.30
  4. Step 4: Simplify right side
    12,512.84x = 96,048,036.54
  5. Step 5: Solve for x
    x = 96,048,036.54/12,512.84
  6. Step 6: Final answer
    x = 7,675.96

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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.