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Finding the Fourth Proportional to 15,804.54, 21,811.40 and 9,092.27

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Solution

The fourth proportional to 15,804.54, 21,811.40 and 9,092.27 is: 12,547.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,804.54 : 21,811.40 = 9,092.27 : x
  2. Step 2: Convert to fraction form
    15,804.54/21,811.40 = 9,092.27/x
  3. Step 3: Cross multiply
    15,804.54x = 21,811.40 × 9,092.27
  4. Step 4: Simplify right side
    15,804.54x = 198,314,983.36
  5. Step 5: Solve for x
    x = 198,314,983.36/15,804.54
  6. Step 6: Final answer
    x = 12,547.98

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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.