Home / 14,724.08-20,308.88-9,686.69

Finding the Fourth Proportional to 14,724.08, 20,308.88 and 9,686.69

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Solution

The fourth proportional to 14,724.08, 20,308.88 and 9,686.69 is: 13,360.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,724.08 : 20,308.88 = 9,686.69 : x
  2. Step 2: Convert to fraction form
    14,724.08/20,308.88 = 9,686.69/x
  3. Step 3: Cross multiply
    14,724.08x = 20,308.88 × 9,686.69
  4. Step 4: Simplify right side
    14,724.08x = 196,725,769.15
  5. Step 5: Solve for x
    x = 196,725,769.15/14,724.08
  6. Step 6: Final answer
    x = 13,360.82

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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.