Home / 12,460.32-18,690.36-4,140.95

Finding the Fourth Proportional to 12,460.32, 18,690.36 and 4,140.95

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Solution

The fourth proportional to 12,460.32, 18,690.36 and 4,140.95 is: 6,211.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,460.32 : 18,690.36 = 4,140.95 : x
  2. Step 2: Convert to fraction form
    12,460.32/18,690.36 = 4,140.95/x
  3. Step 3: Cross multiply
    12,460.32x = 18,690.36 × 4,140.95
  4. Step 4: Simplify right side
    12,460.32x = 77,395,752.79
  5. Step 5: Solve for x
    x = 77,395,752.79/12,460.32
  6. Step 6: Final answer
    x = 6,211.38

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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.