Home / 14,784.12-20,401.62-8,069.70

Finding the Fourth Proportional to 14,784.12, 20,401.62 and 8,069.70

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Solution

The fourth proportional to 14,784.12, 20,401.62 and 8,069.70 is: 11,135.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,784.12 : 20,401.62 = 8,069.70 : x
  2. Step 2: Convert to fraction form
    14,784.12/20,401.62 = 8,069.70/x
  3. Step 3: Cross multiply
    14,784.12x = 20,401.62 × 8,069.70
  4. Step 4: Simplify right side
    14,784.12x = 164,634,952.91
  5. Step 5: Solve for x
    x = 164,634,952.91/14,784.12
  6. Step 6: Final answer
    x = 11,135.93

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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.