Home / 11,315.88-17,001.50-10,686.43

Finding the Fourth Proportional to 11,315.88, 17,001.50 and 10,686.43

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Solution

The fourth proportional to 11,315.88, 17,001.50 and 10,686.43 is: 16,055.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,315.88 : 17,001.50 = 10,686.43 : x
  2. Step 2: Convert to fraction form
    11,315.88/17,001.50 = 10,686.43/x
  3. Step 3: Cross multiply
    11,315.88x = 17,001.50 × 10,686.43
  4. Step 4: Simplify right side
    11,315.88x = 181,685,307.46
  5. Step 5: Solve for x
    x = 181,685,307.46/11,315.88
  6. Step 6: Final answer
    x = 16,055.78

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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.