Home / 13,115.08-19,561.91-11,010.52

Finding the Fourth Proportional to 13,115.08, 19,561.91 and 11,010.52

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Solution

The fourth proportional to 13,115.08, 19,561.91 and 11,010.52 is: 16,422.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,115.08 : 19,561.91 = 11,010.52 : x
  2. Step 2: Convert to fraction form
    13,115.08/19,561.91 = 11,010.52/x
  3. Step 3: Cross multiply
    13,115.08x = 19,561.91 × 11,010.52
  4. Step 4: Simplify right side
    13,115.08x = 215,386,801.29
  5. Step 5: Solve for x
    x = 215,386,801.29/13,115.08
  6. Step 6: Final answer
    x = 16,422.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.