Home / 13,339.40-20,030.70-9,667.40

Finding the Fourth Proportional to 13,339.40, 20,030.70 and 9,667.40

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Solution

The fourth proportional to 13,339.40, 20,030.70 and 9,667.40 is: 14,516.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,339.40 : 20,030.70 = 9,667.40 : x
  2. Step 2: Convert to fraction form
    13,339.40/20,030.70 = 9,667.40/x
  3. Step 3: Cross multiply
    13,339.40x = 20,030.70 × 9,667.40
  4. Step 4: Simplify right side
    13,339.40x = 193,644,789.18
  5. Step 5: Solve for x
    x = 193,644,789.18/13,339.40
  6. Step 6: Final answer
    x = 14,516.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.