Home / 15,726.66-23,474.76-13,661.16

Finding the Fourth Proportional to 15,726.66, 23,474.76 and 13,661.16

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Solution

The fourth proportional to 15,726.66, 23,474.76 and 13,661.16 is: 20,391.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,726.66 : 23,474.76 = 13,661.16 : x
  2. Step 2: Convert to fraction form
    15,726.66/23,474.76 = 13,661.16/x
  3. Step 3: Cross multiply
    15,726.66x = 23,474.76 × 13,661.16
  4. Step 4: Simplify right side
    15,726.66x = 320,692,452.32
  5. Step 5: Solve for x
    x = 320,692,452.32/15,726.66
  6. Step 6: Final answer
    x = 20,391.64

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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.