Home / 15,625.70-21,541.01-11,141.65

Finding the Fourth Proportional to 15,625.70, 21,541.01 and 11,141.65

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Solution

The fourth proportional to 15,625.70, 21,541.01 and 11,141.65 is: 15,359.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,625.70 : 21,541.01 = 11,141.65 : x
  2. Step 2: Convert to fraction form
    15,625.70/21,541.01 = 11,141.65/x
  3. Step 3: Cross multiply
    15,625.70x = 21,541.01 × 11,141.65
  4. Step 4: Simplify right side
    15,625.70x = 240,002,394.07
  5. Step 5: Solve for x
    x = 240,002,394.07/15,625.70
  6. Step 6: Final answer
    x = 15,359.47

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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.