Home / 13,391.64-18,475.93-7,726.25

Finding the Fourth Proportional to 13,391.64, 18,475.93 and 7,726.25

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Solution

The fourth proportional to 13,391.64, 18,475.93 and 7,726.25 is: 10,659.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,391.64 : 18,475.93 = 7,726.25 : x
  2. Step 2: Convert to fraction form
    13,391.64/18,475.93 = 7,726.25/x
  3. Step 3: Cross multiply
    13,391.64x = 18,475.93 × 7,726.25
  4. Step 4: Simplify right side
    13,391.64x = 142,749,710.01
  5. Step 5: Solve for x
    x = 142,749,710.01/13,391.64
  6. Step 6: Final answer
    x = 10,659.61

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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.