Home / 13,239.66-19,853.42-7,905.26

Finding the Fourth Proportional to 13,239.66, 19,853.42 and 7,905.26

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Solution

The fourth proportional to 13,239.66, 19,853.42 and 7,905.26 is: 11,854.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,239.66 : 19,853.42 = 7,905.26 : x
  2. Step 2: Convert to fraction form
    13,239.66/19,853.42 = 7,905.26/x
  3. Step 3: Cross multiply
    13,239.66x = 19,853.42 × 7,905.26
  4. Step 4: Simplify right side
    13,239.66x = 156,946,417.81
  5. Step 5: Solve for x
    x = 156,946,417.81/13,239.66
  6. Step 6: Final answer
    x = 11,854.27

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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.