Home / 12,508.74-18,763.12-5,015.70

Finding the Fourth Proportional to 12,508.74, 18,763.12 and 5,015.70

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Solution

The fourth proportional to 12,508.74, 18,763.12 and 5,015.70 is: 7,523.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,508.74 : 18,763.12 = 5,015.70 : x
  2. Step 2: Convert to fraction form
    12,508.74/18,763.12 = 5,015.70/x
  3. Step 3: Cross multiply
    12,508.74x = 18,763.12 × 5,015.70
  4. Step 4: Simplify right side
    12,508.74x = 94,110,180.98
  5. Step 5: Solve for x
    x = 94,110,180.98/12,508.74
  6. Step 6: Final answer
    x = 7,523.55

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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.