Home / 13,335.68-20,005.12-4,572.16

Finding the Fourth Proportional to 13,335.68, 20,005.12 and 4,572.16

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Solution

The fourth proportional to 13,335.68, 20,005.12 and 4,572.16 is: 6,858.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,335.68 : 20,005.12 = 4,572.16 : x
  2. Step 2: Convert to fraction form
    13,335.68/20,005.12 = 4,572.16/x
  3. Step 3: Cross multiply
    13,335.68x = 20,005.12 × 4,572.16
  4. Step 4: Simplify right side
    13,335.68x = 91,466,609.46
  5. Step 5: Solve for x
    x = 91,466,609.46/13,335.68
  6. Step 6: Final answer
    x = 6,858.79

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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.