Home / 11,167.72-15,392.10-8,368.36

Finding the Fourth Proportional to 11,167.72, 15,392.10 and 8,368.36

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Solution

The fourth proportional to 11,167.72, 15,392.10 and 8,368.36 is: 11,533.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,167.72 : 15,392.10 = 8,368.36 : x
  2. Step 2: Convert to fraction form
    11,167.72/15,392.10 = 8,368.36/x
  3. Step 3: Cross multiply
    11,167.72x = 15,392.10 × 8,368.36
  4. Step 4: Simplify right side
    11,167.72x = 128,806,633.96
  5. Step 5: Solve for x
    x = 128,806,633.96/11,167.72
  6. Step 6: Final answer
    x = 11,533.83

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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.