Home / 14,840.40-20,478.96-8,125.68

Finding the Fourth Proportional to 14,840.40, 20,478.96 and 8,125.68

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Solution

The fourth proportional to 14,840.40, 20,478.96 and 8,125.68 is: 11,213.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,840.40 : 20,478.96 = 8,125.68 : x
  2. Step 2: Convert to fraction form
    14,840.40/20,478.96 = 8,125.68/x
  3. Step 3: Cross multiply
    14,840.40x = 20,478.96 × 8,125.68
  4. Step 4: Simplify right side
    14,840.40x = 166,405,475.69
  5. Step 5: Solve for x
    x = 166,405,475.69/14,840.40
  6. Step 6: Final answer
    x = 11,213.00

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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.