Home / 14,990.13-20,684.57-8,275.23

Finding the Fourth Proportional to 14,990.13, 20,684.57 and 8,275.23

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Solution

The fourth proportional to 14,990.13, 20,684.57 and 8,275.23 is: 11,418.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,990.13 : 20,684.57 = 8,275.23 : x
  2. Step 2: Convert to fraction form
    14,990.13/20,684.57 = 8,275.23/x
  3. Step 3: Cross multiply
    14,990.13x = 20,684.57 × 8,275.23
  4. Step 4: Simplify right side
    14,990.13x = 171,169,532.82
  5. Step 5: Solve for x
    x = 171,169,532.82/14,990.13
  6. Step 6: Final answer
    x = 11,418.82

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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.