Home / 14,905.56-20,572.18-8,621.56

Finding the Fourth Proportional to 14,905.56, 20,572.18 and 8,621.56

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Solution

The fourth proportional to 14,905.56, 20,572.18 and 8,621.56 is: 11,899.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,905.56 : 20,572.18 = 8,621.56 : x
  2. Step 2: Convert to fraction form
    14,905.56/20,572.18 = 8,621.56/x
  3. Step 3: Cross multiply
    14,905.56x = 20,572.18 × 8,621.56
  4. Step 4: Simplify right side
    14,905.56x = 177,364,284.20
  5. Step 5: Solve for x
    x = 177,364,284.20/14,905.56
  6. Step 6: Final answer
    x = 11,899.20

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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.