Home / 14,721.99-20,315.91-8,349.18

Finding the Fourth Proportional to 14,721.99, 20,315.91 and 8,349.18

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Solution

The fourth proportional to 14,721.99, 20,315.91 and 8,349.18 is: 11,521.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,721.99 : 20,315.91 = 8,349.18 : x
  2. Step 2: Convert to fraction form
    14,721.99/20,315.91 = 8,349.18/x
  3. Step 3: Cross multiply
    14,721.99x = 20,315.91 × 8,349.18
  4. Step 4: Simplify right side
    14,721.99x = 169,621,144.58
  5. Step 5: Solve for x
    x = 169,621,144.58/14,721.99
  6. Step 6: Final answer
    x = 11,521.62

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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.