Home / 16,666.86-25,008.45-9,276.78

Finding the Fourth Proportional to 16,666.86, 25,008.45 and 9,276.78

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Solution

The fourth proportional to 16,666.86, 25,008.45 and 9,276.78 is: 13,919.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,666.86 : 25,008.45 = 9,276.78 : x
  2. Step 2: Convert to fraction form
    16,666.86/25,008.45 = 9,276.78/x
  3. Step 3: Cross multiply
    16,666.86x = 25,008.45 × 9,276.78
  4. Step 4: Simplify right side
    16,666.86x = 231,997,888.79
  5. Step 5: Solve for x
    x = 231,997,888.79/16,666.86
  6. Step 6: Final answer
    x = 13,919.71

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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.