Home / 11,711.51-17,574.13-4,321.12

Finding the Fourth Proportional to 11,711.51, 17,574.13 and 4,321.12

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Solution

The fourth proportional to 11,711.51, 17,574.13 and 4,321.12 is: 6,484.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,711.51 : 17,574.13 = 4,321.12 : x
  2. Step 2: Convert to fraction form
    11,711.51/17,574.13 = 4,321.12/x
  3. Step 3: Cross multiply
    11,711.51x = 17,574.13 × 4,321.12
  4. Step 4: Simplify right side
    11,711.51x = 75,939,886.09
  5. Step 5: Solve for x
    x = 75,939,886.09/11,711.51
  6. Step 6: Final answer
    x = 6,484.21

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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.