Home / 19,916.19-29,870.82-7,434.90

Finding the Fourth Proportional to 19,916.19, 29,870.82 and 7,434.90

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Solution

The fourth proportional to 19,916.19, 29,870.82 and 7,434.90 is: 11,151.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,916.19 : 29,870.82 = 7,434.90 : x
  2. Step 2: Convert to fraction form
    19,916.19/29,870.82 = 7,434.90/x
  3. Step 3: Cross multiply
    19,916.19x = 29,870.82 × 7,434.90
  4. Step 4: Simplify right side
    19,916.19x = 222,086,559.62
  5. Step 5: Solve for x
    x = 222,086,559.62/19,916.19
  6. Step 6: Final answer
    x = 11,151.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.