Home / 9,923.91-14,886.20-4,990.86

Finding the Fourth Proportional to 9,923.91, 14,886.20 and 4,990.86

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Solution

The fourth proportional to 9,923.91, 14,886.20 and 4,990.86 is: 7,486.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,923.91 : 14,886.20 = 4,990.86 : x
  2. Step 2: Convert to fraction form
    9,923.91/14,886.20 = 4,990.86/x
  3. Step 3: Cross multiply
    9,923.91x = 14,886.20 × 4,990.86
  4. Step 4: Simplify right side
    9,923.91x = 74,294,940.13
  5. Step 5: Solve for x
    x = 74,294,940.13/9,923.91
  6. Step 6: Final answer
    x = 7,486.46

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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.