Home / 11,439.60-17,165.25-8,665.35

Finding the Fourth Proportional to 11,439.60, 17,165.25 and 8,665.35

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Solution

The fourth proportional to 11,439.60, 17,165.25 and 8,665.35 is: 13,002.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,439.60 : 17,165.25 = 8,665.35 : x
  2. Step 2: Convert to fraction form
    11,439.60/17,165.25 = 8,665.35/x
  3. Step 3: Cross multiply
    11,439.60x = 17,165.25 × 8,665.35
  4. Step 4: Simplify right side
    11,439.60x = 148,742,899.09
  5. Step 5: Solve for x
    x = 148,742,899.09/11,439.60
  6. Step 6: Final answer
    x = 13,002.46

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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.