Home / 11,315.69-16,956.21-5,760.71

Finding the Fourth Proportional to 11,315.69, 16,956.21 and 5,760.71

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Solution

The fourth proportional to 11,315.69, 16,956.21 and 5,760.71 is: 8,632.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,315.69 : 16,956.21 = 5,760.71 : x
  2. Step 2: Convert to fraction form
    11,315.69/16,956.21 = 5,760.71/x
  3. Step 3: Cross multiply
    11,315.69x = 16,956.21 × 5,760.71
  4. Step 4: Simplify right side
    11,315.69x = 97,679,808.51
  5. Step 5: Solve for x
    x = 97,679,808.51/11,315.69
  6. Step 6: Final answer
    x = 8,632.25

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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.