Home / 14,721.68-20,315.96-8,007.36

Finding the Fourth Proportional to 14,721.68, 20,315.96 and 8,007.36

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Solution

The fourth proportional to 14,721.68, 20,315.96 and 8,007.36 is: 11,050.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,721.68 : 20,315.96 = 8,007.36 : x
  2. Step 2: Convert to fraction form
    14,721.68/20,315.96 = 8,007.36/x
  3. Step 3: Cross multiply
    14,721.68x = 20,315.96 × 8,007.36
  4. Step 4: Simplify right side
    14,721.68x = 162,677,205.47
  5. Step 5: Solve for x
    x = 162,677,205.47/14,721.68
  6. Step 6: Final answer
    x = 11,050.18

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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.