Home / 13,723.40-20,587.64-4,365.78

Finding the Fourth Proportional to 13,723.40, 20,587.64 and 4,365.78

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Solution

The fourth proportional to 13,723.40, 20,587.64 and 4,365.78 is: 6,549.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,723.40 : 20,587.64 = 4,365.78 : x
  2. Step 2: Convert to fraction form
    13,723.40/20,587.64 = 4,365.78/x
  3. Step 3: Cross multiply
    13,723.40x = 20,587.64 × 4,365.78
  4. Step 4: Simplify right side
    13,723.40x = 89,881,007.93
  5. Step 5: Solve for x
    x = 89,881,007.93/13,723.40
  6. Step 6: Final answer
    x = 6,549.47

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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.