Home / 14,721.41-20,315.69-8,007.18

Finding the Fourth Proportional to 14,721.41, 20,315.69 and 8,007.18

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Solution

The fourth proportional to 14,721.41, 20,315.69 and 8,007.18 is: 11,049.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,721.41 : 20,315.69 = 8,007.18 : x
  2. Step 2: Convert to fraction form
    14,721.41/20,315.69 = 8,007.18/x
  3. Step 3: Cross multiply
    14,721.41x = 20,315.69 × 8,007.18
  4. Step 4: Simplify right side
    14,721.41x = 162,671,386.65
  5. Step 5: Solve for x
    x = 162,671,386.65/14,721.41
  6. Step 6: Final answer
    x = 11,049.99

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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.