Home / 13,665.04-18,867.86-8,367.08

Finding the Fourth Proportional to 13,665.04, 18,867.86 and 8,367.08

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Solution

The fourth proportional to 13,665.04, 18,867.86 and 8,367.08 is: 11,552.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,665.04 : 18,867.86 = 8,367.08 : x
  2. Step 2: Convert to fraction form
    13,665.04/18,867.86 = 8,367.08/x
  3. Step 3: Cross multiply
    13,665.04x = 18,867.86 × 8,367.08
  4. Step 4: Simplify right side
    13,665.04x = 157,868,894.05
  5. Step 5: Solve for x
    x = 157,868,894.05/13,665.04
  6. Step 6: Final answer
    x = 11,552.76

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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.