Home / 15,780.24-23,650.92-11,557.08

Finding the Fourth Proportional to 15,780.24, 23,650.92 and 11,557.08

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Solution

The fourth proportional to 15,780.24, 23,650.92 and 11,557.08 is: 17,321.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,780.24 : 23,650.92 = 11,557.08 : x
  2. Step 2: Convert to fraction form
    15,780.24/23,650.92 = 11,557.08/x
  3. Step 3: Cross multiply
    15,780.24x = 23,650.92 × 11,557.08
  4. Step 4: Simplify right side
    15,780.24x = 273,335,574.51
  5. Step 5: Solve for x
    x = 273,335,574.51/15,780.24
  6. Step 6: Final answer
    x = 17,321.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.