Home / 12,408.19-18,612.14-5,012.51

Finding the Fourth Proportional to 12,408.19, 18,612.14 and 5,012.51

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Solution

The fourth proportional to 12,408.19, 18,612.14 and 5,012.51 is: 7,518.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,408.19 : 18,612.14 = 5,012.51 : x
  2. Step 2: Convert to fraction form
    12,408.19/18,612.14 = 5,012.51/x
  3. Step 3: Cross multiply
    12,408.19x = 18,612.14 × 5,012.51
  4. Step 4: Simplify right side
    12,408.19x = 93,293,419.75
  5. Step 5: Solve for x
    x = 93,293,419.75/12,408.19
  6. Step 6: Final answer
    x = 7,518.70

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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.