Home / 10,939.13-16,384.07-7,666.84

Finding the Fourth Proportional to 10,939.13, 16,384.07 and 7,666.84

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Solution

The fourth proportional to 10,939.13, 16,384.07 and 7,666.84 is: 11,482.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,939.13 : 16,384.07 = 7,666.84 : x
  2. Step 2: Convert to fraction form
    10,939.13/16,384.07 = 7,666.84/x
  3. Step 3: Cross multiply
    10,939.13x = 16,384.07 × 7,666.84
  4. Step 4: Simplify right side
    10,939.13x = 125,613,922.98
  5. Step 5: Solve for x
    x = 125,613,922.98/10,939.13
  6. Step 6: Final answer
    x = 11,482.99

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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.