Home / 14,861.18-20,507.81-8,889.32

Finding the Fourth Proportional to 14,861.18, 20,507.81 and 8,889.32

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Solution

The fourth proportional to 14,861.18, 20,507.81 and 8,889.32 is: 12,266.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,861.18 : 20,507.81 = 8,889.32 : x
  2. Step 2: Convert to fraction form
    14,861.18/20,507.81 = 8,889.32/x
  3. Step 3: Cross multiply
    14,861.18x = 20,507.81 × 8,889.32
  4. Step 4: Simplify right side
    14,861.18x = 182,300,338.60
  5. Step 5: Solve for x
    x = 182,300,338.60/14,861.18
  6. Step 6: Final answer
    x = 12,266.89

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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.