Home / 13,656.84-20,485.32-4,296.48

Finding the Fourth Proportional to 13,656.84, 20,485.32 and 4,296.48

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Solution

The fourth proportional to 13,656.84, 20,485.32 and 4,296.48 is: 6,444.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,656.84 : 20,485.32 = 4,296.48 : x
  2. Step 2: Convert to fraction form
    13,656.84/20,485.32 = 4,296.48/x
  3. Step 3: Cross multiply
    13,656.84x = 20,485.32 × 4,296.48
  4. Step 4: Simplify right side
    13,656.84x = 88,014,767.67
  5. Step 5: Solve for x
    x = 88,014,767.67/13,656.84
  6. Step 6: Final answer
    x = 6,444.74

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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.