Home / 19,187.89-26,479.69-10,690.54

Finding the Fourth Proportional to 19,187.89, 26,479.69 and 10,690.54

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Solution

The fourth proportional to 19,187.89, 26,479.69 and 10,690.54 is: 14,753.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,187.89 : 26,479.69 = 10,690.54 : x
  2. Step 2: Convert to fraction form
    19,187.89/26,479.69 = 10,690.54/x
  3. Step 3: Cross multiply
    19,187.89x = 26,479.69 × 10,690.54
  4. Step 4: Simplify right side
    19,187.89x = 283,082,092.21
  5. Step 5: Solve for x
    x = 283,082,092.21/19,187.89
  6. Step 6: Final answer
    x = 14,753.17

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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.