Home / 14,707.14-20,288.25-9,108.42

Finding the Fourth Proportional to 14,707.14, 20,288.25 and 9,108.42

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Solution

The fourth proportional to 14,707.14, 20,288.25 and 9,108.42 is: 12,564.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,707.14 : 20,288.25 = 9,108.42 : x
  2. Step 2: Convert to fraction form
    14,707.14/20,288.25 = 9,108.42/x
  3. Step 3: Cross multiply
    14,707.14x = 20,288.25 × 9,108.42
  4. Step 4: Simplify right side
    14,707.14x = 184,793,902.07
  5. Step 5: Solve for x
    x = 184,793,902.07/14,707.14
  6. Step 6: Final answer
    x = 12,564.91

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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.