Home / 13,730.26-18,951.15-9,020.92

Finding the Fourth Proportional to 13,730.26, 18,951.15 and 9,020.92

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Solution

The fourth proportional to 13,730.26, 18,951.15 and 9,020.92 is: 12,451.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,730.26 : 18,951.15 = 9,020.92 : x
  2. Step 2: Convert to fraction form
    13,730.26/18,951.15 = 9,020.92/x
  3. Step 3: Cross multiply
    13,730.26x = 18,951.15 × 9,020.92
  4. Step 4: Simplify right side
    13,730.26x = 170,956,808.06
  5. Step 5: Solve for x
    x = 170,956,808.06/13,730.26
  6. Step 6: Final answer
    x = 12,451.10

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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.