Home / 12,711.24-17,526.26-10,939.80

Finding the Fourth Proportional to 12,711.24, 17,526.26 and 10,939.80

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Solution

The fourth proportional to 12,711.24, 17,526.26 and 10,939.80 is: 15,083.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,711.24 : 17,526.26 = 10,939.80 : x
  2. Step 2: Convert to fraction form
    12,711.24/17,526.26 = 10,939.80/x
  3. Step 3: Cross multiply
    12,711.24x = 17,526.26 × 10,939.80
  4. Step 4: Simplify right side
    12,711.24x = 191,733,779.15
  5. Step 5: Solve for x
    x = 191,733,779.15/12,711.24
  6. Step 6: Final answer
    x = 15,083.80

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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.