Home / 14,585.69-20,127.94-8,920.50

Finding the Fourth Proportional to 14,585.69, 20,127.94 and 8,920.50

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Solution

The fourth proportional to 14,585.69, 20,127.94 and 8,920.50 is: 12,310.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,585.69 : 20,127.94 = 8,920.50 : x
  2. Step 2: Convert to fraction form
    14,585.69/20,127.94 = 8,920.50/x
  3. Step 3: Cross multiply
    14,585.69x = 20,127.94 × 8,920.50
  4. Step 4: Simplify right side
    14,585.69x = 179,551,241.17
  5. Step 5: Solve for x
    x = 179,551,241.17/14,585.69
  6. Step 6: Final answer
    x = 12,310.10

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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.