Home / 11,528.91-15,878.84-9,954.27

Finding the Fourth Proportional to 11,528.91, 15,878.84 and 9,954.27

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Solution

The fourth proportional to 11,528.91, 15,878.84 and 9,954.27 is: 13,710.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,528.91 : 15,878.84 = 9,954.27 : x
  2. Step 2: Convert to fraction form
    11,528.91/15,878.84 = 9,954.27/x
  3. Step 3: Cross multiply
    11,528.91x = 15,878.84 × 9,954.27
  4. Step 4: Simplify right side
    11,528.91x = 158,062,210.88
  5. Step 5: Solve for x
    x = 158,062,210.88/11,528.91
  6. Step 6: Final answer
    x = 13,710.07

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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.