Home / 19,139.79-26,414.39-10,642.62

Finding the Fourth Proportional to 19,139.79, 26,414.39 and 10,642.62

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Solution

The fourth proportional to 19,139.79, 26,414.39 and 10,642.62 is: 14,687.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,139.79 : 26,414.39 = 10,642.62 : x
  2. Step 2: Convert to fraction form
    19,139.79/26,414.39 = 10,642.62/x
  3. Step 3: Cross multiply
    19,139.79x = 26,414.39 × 10,642.62
  4. Step 4: Simplify right side
    19,139.79x = 281,118,381.10
  5. Step 5: Solve for x
    x = 281,118,381.10/19,139.79
  6. Step 6: Final answer
    x = 14,687.64

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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.