Home / 13,637.81-20,456.75-4,403.81

Finding the Fourth Proportional to 13,637.81, 20,456.75 and 4,403.81

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Solution

The fourth proportional to 13,637.81, 20,456.75 and 4,403.81 is: 6,605.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,637.81 : 20,456.75 = 4,403.81 : x
  2. Step 2: Convert to fraction form
    13,637.81/20,456.75 = 4,403.81/x
  3. Step 3: Cross multiply
    13,637.81x = 20,456.75 × 4,403.81
  4. Step 4: Simplify right side
    13,637.81x = 90,087,702.37
  5. Step 5: Solve for x
    x = 90,087,702.37/13,637.81
  6. Step 6: Final answer
    x = 6,605.73

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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.