Home / 15,643.36-23,347.55-13,525.64

Finding the Fourth Proportional to 15,643.36, 23,347.55 and 13,525.64

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Solution

The fourth proportional to 15,643.36, 23,347.55 and 13,525.64 is: 20,186.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,643.36 : 23,347.55 = 13,525.64 : x
  2. Step 2: Convert to fraction form
    15,643.36/23,347.55 = 13,525.64/x
  3. Step 3: Cross multiply
    15,643.36x = 23,347.55 × 13,525.64
  4. Step 4: Simplify right side
    15,643.36x = 315,790,488.55
  5. Step 5: Solve for x
    x = 315,790,488.55/15,643.36
  6. Step 6: Final answer
    x = 20,186.87

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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.