Home / 13,455.22-20,184.64-4,688.08

Finding the Fourth Proportional to 13,455.22, 20,184.64 and 4,688.08

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Solution

The fourth proportional to 13,455.22, 20,184.64 and 4,688.08 is: 7,032.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,455.22 : 20,184.64 = 4,688.08 : x
  2. Step 2: Convert to fraction form
    13,455.22/20,184.64 = 4,688.08/x
  3. Step 3: Cross multiply
    13,455.22x = 20,184.64 × 4,688.08
  4. Step 4: Simplify right side
    13,455.22x = 94,627,207.09
  5. Step 5: Solve for x
    x = 94,627,207.09/13,455.22
  6. Step 6: Final answer
    x = 7,032.75

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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.