Home / 12,412.40-18,619.20-5,015.93

Finding the Fourth Proportional to 12,412.40, 18,619.20 and 5,015.93

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Solution

The fourth proportional to 12,412.40, 18,619.20 and 5,015.93 is: 7,524.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,412.40 : 18,619.20 = 5,015.93 : x
  2. Step 2: Convert to fraction form
    12,412.40/18,619.20 = 5,015.93/x
  3. Step 3: Cross multiply
    12,412.40x = 18,619.20 × 5,015.93
  4. Step 4: Simplify right side
    12,412.40x = 93,392,603.86
  5. Step 5: Solve for x
    x = 93,392,603.86/12,412.40
  6. Step 6: Final answer
    x = 7,524.14

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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.