Home / 19,386.58-29,083.11-7,699.90

Finding the Fourth Proportional to 19,386.58, 29,083.11 and 7,699.90

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Solution

The fourth proportional to 19,386.58, 29,083.11 and 7,699.90 is: 11,551.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,386.58 : 29,083.11 = 7,699.90 : x
  2. Step 2: Convert to fraction form
    19,386.58/29,083.11 = 7,699.90/x
  3. Step 3: Cross multiply
    19,386.58x = 29,083.11 × 7,699.90
  4. Step 4: Simplify right side
    19,386.58x = 223,937,038.69
  5. Step 5: Solve for x
    x = 223,937,038.69/19,386.58
  6. Step 6: Final answer
    x = 11,551.14

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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.