Home / 19,188.38-26,479.56-10,690.49

Finding the Fourth Proportional to 19,188.38, 26,479.56 and 10,690.49

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Solution

The fourth proportional to 19,188.38, 26,479.56 and 10,690.49 is: 14,752.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,188.38 : 26,479.56 = 10,690.49 : x
  2. Step 2: Convert to fraction form
    19,188.38/26,479.56 = 10,690.49/x
  3. Step 3: Cross multiply
    19,188.38x = 26,479.56 × 10,690.49
  4. Step 4: Simplify right side
    19,188.38x = 283,079,471.38
  5. Step 5: Solve for x
    x = 283,079,471.38/19,188.38
  6. Step 6: Final answer
    x = 14,752.65

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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.