Home / 9,990.51-14,909.79-8,883.36

Finding the Fourth Proportional to 9,990.51, 14,909.79 and 8,883.36

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Solution

The fourth proportional to 9,990.51, 14,909.79 and 8,883.36 is: 13,257.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,990.51 : 14,909.79 = 8,883.36 : x
  2. Step 2: Convert to fraction form
    9,990.51/14,909.79 = 8,883.36/x
  3. Step 3: Cross multiply
    9,990.51x = 14,909.79 × 8,883.36
  4. Step 4: Simplify right side
    9,990.51x = 132,449,032.09
  5. Step 5: Solve for x
    x = 132,449,032.09/9,990.51
  6. Step 6: Final answer
    x = 13,257.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.