Home / 19,182.72-26,476.24-12,891.45

Finding the Fourth Proportional to 19,182.72, 26,476.24 and 12,891.45

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Solution

The fourth proportional to 19,182.72, 26,476.24 and 12,891.45 is: 17,792.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,182.72 : 26,476.24 = 12,891.45 : x
  2. Step 2: Convert to fraction form
    19,182.72/26,476.24 = 12,891.45/x
  3. Step 3: Cross multiply
    19,182.72x = 26,476.24 × 12,891.45
  4. Step 4: Simplify right side
    19,182.72x = 341,317,271.78
  5. Step 5: Solve for x
    x = 341,317,271.78/19,182.72
  6. Step 6: Final answer
    x = 17,792.95

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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.