Home / 15,999.30-23,999.56-6,139.58

Finding the Fourth Proportional to 15,999.30, 23,999.56 and 6,139.58

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Solution

The fourth proportional to 15,999.30, 23,999.56 and 6,139.58 is: 9,209.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,999.30 : 23,999.56 = 6,139.58 : x
  2. Step 2: Convert to fraction form
    15,999.30/23,999.56 = 6,139.58/x
  3. Step 3: Cross multiply
    15,999.30x = 23,999.56 × 6,139.58
  4. Step 4: Simplify right side
    15,999.30x = 147,347,083.24
  5. Step 5: Solve for x
    x = 147,347,083.24/15,999.30
  6. Step 6: Final answer
    x = 9,209.60

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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.