Home / 19,117.87-26,382.83-11,158.55

Finding the Fourth Proportional to 19,117.87, 26,382.83 and 11,158.55

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Solution

The fourth proportional to 19,117.87, 26,382.83 and 11,158.55 is: 15,398.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,117.87 : 26,382.83 = 11,158.55 : x
  2. Step 2: Convert to fraction form
    19,117.87/26,382.83 = 11,158.55/x
  3. Step 3: Cross multiply
    19,117.87x = 26,382.83 × 11,158.55
  4. Step 4: Simplify right side
    19,117.87x = 294,393,939.99
  5. Step 5: Solve for x
    x = 294,393,939.99/19,117.87
  6. Step 6: Final answer
    x = 15,398.89

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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.