Home / 14,114.20-21,129.18-8,550.76

Finding the Fourth Proportional to 14,114.20, 21,129.18 and 8,550.76

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Solution

The fourth proportional to 14,114.20, 21,129.18 and 8,550.76 is: 12,800.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,114.20 : 21,129.18 = 8,550.76 : x
  2. Step 2: Convert to fraction form
    14,114.20/21,129.18 = 8,550.76/x
  3. Step 3: Cross multiply
    14,114.20x = 21,129.18 × 8,550.76
  4. Step 4: Simplify right side
    14,114.20x = 180,670,547.18
  5. Step 5: Solve for x
    x = 180,670,547.18/14,114.20
  6. Step 6: Final answer
    x = 12,800.62

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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.