Home / 15,775.25-21,769.80-9,061.31

Finding the Fourth Proportional to 15,775.25, 21,769.80 and 9,061.31

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Solution

The fourth proportional to 15,775.25, 21,769.80 and 9,061.31 is: 12,504.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,775.25 : 21,769.80 = 9,061.31 : x
  2. Step 2: Convert to fraction form
    15,775.25/21,769.80 = 9,061.31/x
  3. Step 3: Cross multiply
    15,775.25x = 21,769.80 × 9,061.31
  4. Step 4: Simplify right side
    15,775.25x = 197,262,804.43
  5. Step 5: Solve for x
    x = 197,262,804.43/15,775.25
  6. Step 6: Final answer
    x = 12,504.58

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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.