Home / 9,990.23-14,983.92-3,415.46

Finding the Fourth Proportional to 9,990.23, 14,983.92 and 3,415.46

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Solution

The fourth proportional to 9,990.23, 14,983.92 and 3,415.46 is: 5,122.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,990.23 : 14,983.92 = 3,415.46 : x
  2. Step 2: Convert to fraction form
    9,990.23/14,983.92 = 3,415.46/x
  3. Step 3: Cross multiply
    9,990.23x = 14,983.92 × 3,415.46
  4. Step 4: Simplify right side
    9,990.23x = 51,176,904.48
  5. Step 5: Solve for x
    x = 51,176,904.48/9,990.23
  6. Step 6: Final answer
    x = 5,122.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.