Home / 19,815.83-29,715.10-7,495.19

Finding the Fourth Proportional to 19,815.83, 29,715.10 and 7,495.19

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Solution

The fourth proportional to 19,815.83, 29,715.10 and 7,495.19 is: 11,239.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,815.83 : 29,715.10 = 7,495.19 : x
  2. Step 2: Convert to fraction form
    19,815.83/29,715.10 = 7,495.19/x
  3. Step 3: Cross multiply
    19,815.83x = 29,715.10 × 7,495.19
  4. Step 4: Simplify right side
    19,815.83x = 222,720,227.34
  5. Step 5: Solve for x
    x = 222,720,227.34/19,815.83
  6. Step 6: Final answer
    x = 11,239.51

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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.