Home / 13,656.32-20,487.04-7,491.84

Finding the Fourth Proportional to 13,656.32, 20,487.04 and 7,491.84

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Solution

The fourth proportional to 13,656.32, 20,487.04 and 7,491.84 is: 11,239.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,656.32 : 20,487.04 = 7,491.84 : x
  2. Step 2: Convert to fraction form
    13,656.32/20,487.04 = 7,491.84/x
  3. Step 3: Cross multiply
    13,656.32x = 20,487.04 × 7,491.84
  4. Step 4: Simplify right side
    13,656.32x = 153,485,625.75
  5. Step 5: Solve for x
    x = 153,485,625.75/13,656.32
  6. Step 6: Final answer
    x = 11,239.16

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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.