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Finding the Fourth Proportional to 11,525.12, 15,904.98 and 6,488.94

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Solution

The fourth proportional to 11,525.12, 15,904.98 and 6,488.94 is: 8,954.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,525.12 : 15,904.98 = 6,488.94 : x
  2. Step 2: Convert to fraction form
    11,525.12/15,904.98 = 6,488.94/x
  3. Step 3: Cross multiply
    11,525.12x = 15,904.98 × 6,488.94
  4. Step 4: Simplify right side
    11,525.12x = 103,206,428.48
  5. Step 5: Solve for x
    x = 103,206,428.48/11,525.12
  6. Step 6: Final answer
    x = 8,954.92

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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.