Home / 13,605.58-20,403.51-4,838.75

Finding the Fourth Proportional to 13,605.58, 20,403.51 and 4,838.75

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Solution

The fourth proportional to 13,605.58, 20,403.51 and 4,838.75 is: 7,256.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,605.58 : 20,403.51 = 4,838.75 : x
  2. Step 2: Convert to fraction form
    13,605.58/20,403.51 = 4,838.75/x
  3. Step 3: Cross multiply
    13,605.58x = 20,403.51 × 4,838.75
  4. Step 4: Simplify right side
    13,605.58x = 98,727,440.36
  5. Step 5: Solve for x
    x = 98,727,440.36/13,605.58
  6. Step 6: Final answer
    x = 7,256.39

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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.