Home / 14,776.30-20,395.84-9,112.82

Finding the Fourth Proportional to 14,776.30, 20,395.84 and 9,112.82

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Solution

The fourth proportional to 14,776.30, 20,395.84 and 9,112.82 is: 12,578.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,776.30 : 20,395.84 = 9,112.82 : x
  2. Step 2: Convert to fraction form
    14,776.30/20,395.84 = 9,112.82/x
  3. Step 3: Cross multiply
    14,776.30x = 20,395.84 × 9,112.82
  4. Step 4: Simplify right side
    14,776.30x = 185,863,618.67
  5. Step 5: Solve for x
    x = 185,863,618.67/14,776.30
  6. Step 6: Final answer
    x = 12,578.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.