Home / 13,587.66-18,742.34-9,816.36

Finding the Fourth Proportional to 13,587.66, 18,742.34 and 9,816.36

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Solution

The fourth proportional to 13,587.66, 18,742.34 and 9,816.36 is: 13,540.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,587.66 : 18,742.34 = 9,816.36 : x
  2. Step 2: Convert to fraction form
    13,587.66/18,742.34 = 9,816.36/x
  3. Step 3: Cross multiply
    13,587.66x = 18,742.34 × 9,816.36
  4. Step 4: Simplify right side
    13,587.66x = 183,981,507.60
  5. Step 5: Solve for x
    x = 183,981,507.60/13,587.66
  6. Step 6: Final answer
    x = 13,540.34

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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.