Home / 15,779.85-23,665.06-12,999.62

Finding the Fourth Proportional to 15,779.85, 23,665.06 and 12,999.62

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Solution

The fourth proportional to 15,779.85, 23,665.06 and 12,999.62 is: 19,495.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,779.85 : 23,665.06 = 12,999.62 : x
  2. Step 2: Convert to fraction form
    15,779.85/23,665.06 = 12,999.62/x
  3. Step 3: Cross multiply
    15,779.85x = 23,665.06 × 12,999.62
  4. Step 4: Simplify right side
    15,779.85x = 307,636,862.69
  5. Step 5: Solve for x
    x = 307,636,862.69/15,779.85
  6. Step 6: Final answer
    x = 19,495.56

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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.