Home / 16,706.28-23,038.75-9,990.82

Finding the Fourth Proportional to 16,706.28, 23,038.75 and 9,990.82

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Solution

The fourth proportional to 16,706.28, 23,038.75 and 9,990.82 is: 13,777.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,706.28 : 23,038.75 = 9,990.82 : x
  2. Step 2: Convert to fraction form
    16,706.28/23,038.75 = 9,990.82/x
  3. Step 3: Cross multiply
    16,706.28x = 23,038.75 × 9,990.82
  4. Step 4: Simplify right side
    16,706.28x = 230,176,004.28
  5. Step 5: Solve for x
    x = 230,176,004.28/16,706.28
  6. Step 6: Final answer
    x = 13,777.81

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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.