Home / 13,923.27-20,895.28-5,603.35

Finding the Fourth Proportional to 13,923.27, 20,895.28 and 5,603.35

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Solution

The fourth proportional to 13,923.27, 20,895.28 and 5,603.35 is: 8,409.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,923.27 : 20,895.28 = 5,603.35 : x
  2. Step 2: Convert to fraction form
    13,923.27/20,895.28 = 5,603.35/x
  3. Step 3: Cross multiply
    13,923.27x = 20,895.28 × 5,603.35
  4. Step 4: Simplify right side
    13,923.27x = 117,083,539.17
  5. Step 5: Solve for x
    x = 117,083,539.17/13,923.27
  6. Step 6: Final answer
    x = 8,409.20

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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.