Home / 14,581.20-20,121.40-8,925.36

Finding the Fourth Proportional to 14,581.20, 20,121.40 and 8,925.36

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Solution

The fourth proportional to 14,581.20, 20,121.40 and 8,925.36 is: 12,316.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,581.20 : 20,121.40 = 8,925.36 : x
  2. Step 2: Convert to fraction form
    14,581.20/20,121.40 = 8,925.36/x
  3. Step 3: Cross multiply
    14,581.20x = 20,121.40 × 8,925.36
  4. Step 4: Simplify right side
    14,581.20x = 179,590,738.70
  5. Step 5: Solve for x
    x = 179,590,738.70/14,581.20
  6. Step 6: Final answer
    x = 12,316.60

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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.