Home / 13,637.12-20,455.36-4,403.20

Finding the Fourth Proportional to 13,637.12, 20,455.36 and 4,403.20

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Solution

The fourth proportional to 13,637.12, 20,455.36 and 4,403.20 is: 6,604.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,637.12 : 20,455.36 = 4,403.20 : x
  2. Step 2: Convert to fraction form
    13,637.12/20,455.36 = 4,403.20/x
  3. Step 3: Cross multiply
    13,637.12x = 20,455.36 × 4,403.20
  4. Step 4: Simplify right side
    13,637.12x = 90,069,041.15
  5. Step 5: Solve for x
    x = 90,069,041.15/13,637.12
  6. Step 6: Final answer
    x = 6,604.70

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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.