Home / 19,265.85-26,555.04-12,890.14

Finding the Fourth Proportional to 19,265.85, 26,555.04 and 12,890.14

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Solution

The fourth proportional to 19,265.85, 26,555.04 and 12,890.14 is: 17,767.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,265.85 : 26,555.04 = 12,890.14 : x
  2. Step 2: Convert to fraction form
    19,265.85/26,555.04 = 12,890.14/x
  3. Step 3: Cross multiply
    19,265.85x = 26,555.04 × 12,890.14
  4. Step 4: Simplify right side
    19,265.85x = 342,298,116.92
  5. Step 5: Solve for x
    x = 342,298,116.92/19,265.85
  6. Step 6: Final answer
    x = 17,767.09

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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.