Home / 12,518.28-18,770.69-5,018.08

Finding the Fourth Proportional to 12,518.28, 18,770.69 and 5,018.08

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Solution

The fourth proportional to 12,518.28, 18,770.69 and 5,018.08 is: 7,524.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,518.28 : 18,770.69 = 5,018.08 : x
  2. Step 2: Convert to fraction form
    12,518.28/18,770.69 = 5,018.08/x
  3. Step 3: Cross multiply
    12,518.28x = 18,770.69 × 5,018.08
  4. Step 4: Simplify right side
    12,518.28x = 94,192,705.13
  5. Step 5: Solve for x
    x = 94,192,705.13/12,518.28
  6. Step 6: Final answer
    x = 7,524.41

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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.