Home / 14,939.67-20,616.69-8,225.31

Finding the Fourth Proportional to 14,939.67, 20,616.69 and 8,225.31

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Solution

The fourth proportional to 14,939.67, 20,616.69 and 8,225.31 is: 11,350.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,939.67 : 20,616.69 = 8,225.31 : x
  2. Step 2: Convert to fraction form
    14,939.67/20,616.69 = 8,225.31/x
  3. Step 3: Cross multiply
    14,939.67x = 20,616.69 × 8,225.31
  4. Step 4: Simplify right side
    14,939.67x = 169,578,666.42
  5. Step 5: Solve for x
    x = 169,578,666.42/14,939.67
  6. Step 6: Final answer
    x = 11,350.90

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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.