Home / 13,664.52-18,853.56-8,357.40

Finding the Fourth Proportional to 13,664.52, 18,853.56 and 8,357.40

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Solution

The fourth proportional to 13,664.52, 18,853.56 and 8,357.40 is: 11,531.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,664.52 : 18,853.56 = 8,357.40 : x
  2. Step 2: Convert to fraction form
    13,664.52/18,853.56 = 8,357.40/x
  3. Step 3: Cross multiply
    13,664.52x = 18,853.56 × 8,357.40
  4. Step 4: Simplify right side
    13,664.52x = 157,566,742.34
  5. Step 5: Solve for x
    x = 157,566,742.34/13,664.52
  6. Step 6: Final answer
    x = 11,531.09

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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.