Home / 14,911.60-22,343.10-12,821.80

Finding the Fourth Proportional to 14,911.60, 22,343.10 and 12,821.80

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Solution

The fourth proportional to 14,911.60, 22,343.10 and 12,821.80 is: 19,211.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,911.60 : 22,343.10 = 12,821.80 : x
  2. Step 2: Convert to fraction form
    14,911.60/22,343.10 = 12,821.80/x
  3. Step 3: Cross multiply
    14,911.60x = 22,343.10 × 12,821.80
  4. Step 4: Simplify right side
    14,911.60x = 286,478,759.58
  5. Step 5: Solve for x
    x = 286,478,759.58/14,911.60
  6. Step 6: Final answer
    x = 19,211.81

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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.