Home / 11,148.79-16,700.50-8,945.59

Finding the Fourth Proportional to 11,148.79, 16,700.50 and 8,945.59

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Solution

The fourth proportional to 11,148.79, 16,700.50 and 8,945.59 is: 13,400.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,148.79 : 16,700.50 = 8,945.59 : x
  2. Step 2: Convert to fraction form
    11,148.79/16,700.50 = 8,945.59/x
  3. Step 3: Cross multiply
    11,148.79x = 16,700.50 × 8,945.59
  4. Step 4: Simplify right side
    11,148.79x = 149,395,825.80
  5. Step 5: Solve for x
    x = 149,395,825.80/11,148.79
  6. Step 6: Final answer
    x = 13,400.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.