Home / 14,869.89-20,518.74-8,819.19

Finding the Fourth Proportional to 14,869.89, 20,518.74 and 8,819.19

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Solution

The fourth proportional to 14,869.89, 20,518.74 and 8,819.19 is: 12,169.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,869.89 : 20,518.74 = 8,819.19 : x
  2. Step 2: Convert to fraction form
    14,869.89/20,518.74 = 8,819.19/x
  3. Step 3: Cross multiply
    14,869.89x = 20,518.74 × 8,819.19
  4. Step 4: Simplify right side
    14,869.89x = 180,958,666.62
  5. Step 5: Solve for x
    x = 180,958,666.62/14,869.89
  6. Step 6: Final answer
    x = 12,169.47

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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.