Home / 19,423.90-26,790.78-12,698.74

Finding the Fourth Proportional to 19,423.90, 26,790.78 and 12,698.74

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Solution

The fourth proportional to 19,423.90, 26,790.78 and 12,698.74 is: 17,514.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,423.90 : 26,790.78 = 12,698.74 : x
  2. Step 2: Convert to fraction form
    19,423.90/26,790.78 = 12,698.74/x
  3. Step 3: Cross multiply
    19,423.90x = 26,790.78 × 12,698.74
  4. Step 4: Simplify right side
    19,423.90x = 340,209,149.62
  5. Step 5: Solve for x
    x = 340,209,149.62/19,423.90
  6. Step 6: Final answer
    x = 17,514.98

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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.