Home / 11,893.04-16,412.80-7,176.40

Finding the Fourth Proportional to 11,893.04, 16,412.80 and 7,176.40

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Solution

The fourth proportional to 11,893.04, 16,412.80 and 7,176.40 is: 9,903.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,893.04 : 16,412.80 = 7,176.40 : x
  2. Step 2: Convert to fraction form
    11,893.04/16,412.80 = 7,176.40/x
  3. Step 3: Cross multiply
    11,893.04x = 16,412.80 × 7,176.40
  4. Step 4: Simplify right side
    11,893.04x = 117,784,817.92
  5. Step 5: Solve for x
    x = 117,784,817.92/11,893.04
  6. Step 6: Final answer
    x = 9,903.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.