Home / 14,846.50-20,487.29-8,130.79

Finding the Fourth Proportional to 14,846.50, 20,487.29 and 8,130.79

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Solution

The fourth proportional to 14,846.50, 20,487.29 and 8,130.79 is: 11,220.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,846.50 : 20,487.29 = 8,130.79 : x
  2. Step 2: Convert to fraction form
    14,846.50/20,487.29 = 8,130.79/x
  3. Step 3: Cross multiply
    14,846.50x = 20,487.29 × 8,130.79
  4. Step 4: Simplify right side
    14,846.50x = 166,577,709.57
  5. Step 5: Solve for x
    x = 166,577,709.57/14,846.50
  6. Step 6: Final answer
    x = 11,220.00

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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.